HISPANA | Directorio nacional de recursos digitales > Dades de registre

Está en:  › Dades de registre

Linked Open Data

A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags

Identificadores del recurso

Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .

2213-3437

https://hdl.handle.net/2454/43773

10.1016/j.jece.2022.107546

Procedència

(Academica-e: repositorio digital de la Universidad Pública de Navarra)

Fitxa

Títol:: A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags
Tema:: Aluminum saline slags; Industrial waste valorization; High-value-added products; Aluminum extraction
Descripció:: A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.; This work was supported by 'Memoria de D. Samuel Solórzano Barruso' Foundation (FS/11-2020). AJ thanks Universidad de Salamanca and Banco Santander for a predoctoral contract. AG is grateful for financial support from the Spanish Ministry of Science and Innovation (MCIN/AEI/10.13039/501100011033) through project PID2020-112656RB-C21. AG also thanks Santander Bank for funding via the Research Intensification Program.
Idioma:: English
Relació:: Journal of Environmental Chemical Engineering, 2022, 10 (3); info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/; https://doi.org/10.1016/j.jece.2022.107546
Autor/Productor:: Jiménez, Alejandro; Rives, Vicente; Vicente, Miguel Ángel; 0000-0001-9323-5981
Editor:: Elsevier
Otros colaboradores/productores:: Universidad Pública de Navarra. Departamento de Ciencias; Institute for Advanced Materials and Mathematics - INAMAT2; Nafarroako Unibertsitate Publikoa. Zientziak Saila
Drets:: © 2022 The Author(s). This is an open access article under the CC BY-NC-ND license; http://creativecommons.org/licenses/by-nc-nd/4.0/; Acceso abierto / Sarbide irekia; info:eu-repo/semantics/openAccess
Data:: 2022
Tipo de recurso:: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion
Format:: application/pdf; application/msword

oai_dc

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<oai_dc:dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
1. <dc:title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</dc:title>
2. <dc:creator>Jiménez, Alejandro</dc:creator>
3. <dc:creator>Rives, Vicente</dc:creator>
4. <dc:creator>Vicente, Miguel Ángel</dc:creator>
5. <dc:creator>0000-0001-9323-5981</dc:creator>
6. <dc:contributor>Universidad Pública de Navarra. Departamento de Ciencias</dc:contributor>
7. <dc:contributor>Institute for Advanced Materials and Mathematics - INAMAT2</dc:contributor>
8. <dc:contributor>Nafarroako Unibertsitate Publikoa. Zientziak Saila</dc:contributor>
9. <dc:subject>Aluminum saline slags</dc:subject>
10. <dc:subject>Industrial waste valorization</dc:subject>
11. <dc:subject>High-value-added products</dc:subject>
12. <dc:subject>Aluminum extraction</dc:subject>
13. <dc:description>A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</dc:description>
14. <dc:description>This work was supported by 'Memoria de D. Samuel Solórzano Barruso' Foundation (FS/11-2020). AJ thanks Universidad de Salamanca and Banco Santander for a predoctoral contract. AG is grateful for financial support from the Spanish Ministry of Science and Innovation (MCIN/AEI/10.13039/501100011033) through project PID2020-112656RB-C21. AG also thanks Santander Bank for funding via the Research Intensification Program.</dc:description>
15. <dc:date>2022</dc:date>
16. <dc:type>info:eu-repo/semantics/article</dc:type>
17. <dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
18. <dc:identifier>Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</dc:identifier>
19. <dc:identifier>2213-3437</dc:identifier>
20. <dc:identifier>https://hdl.handle.net/2454/43773</dc:identifier>
21. <dc:identifier>10.1016/j.jece.2022.107546</dc:identifier>
22. <dc:language>eng</dc:language>
23. <dc:relation>Journal of Environmental Chemical Engineering, 2022, 10 (3)</dc:relation>
24. <dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/</dc:relation>
25. <dc:relation>https://doi.org/10.1016/j.jece.2022.107546</dc:relation>
26. <dc:rights>© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</dc:rights>
27. <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
28. <dc:rights>Acceso abierto / Sarbide irekia</dc:rights>
29. <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
30. <dc:format>application/pdf</dc:format>
31. <dc:format>application/msword</dc:format>
32. <dc:publisher>Elsevier</dc:publisher>
</oai_dc:dc>

didl

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<d:DIDL schemaLocation="urn:mpeg:mpeg21:2002:02-DIDL-NS http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-21_schema_files/did/didl.xsd">
1. <d:Item id="hdl_2454_43773">
  1. <d:Descriptor>
    1. <d:Statement mimeType="application/xml; charset=utf-8">
      1. <dii:Identifier schemaLocation="urn:mpeg:mpeg21:2002:01-DII-NS http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-21_schema_files/dii/dii.xsd">urn:hdl:2454/43773</dii:Identifier>
      </d:Statement>
    </d:Descriptor>
  2. <d:Descriptor>
    1. <d:Statement mimeType="application/xml; charset=utf-8">
      1. <oai_dc:dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
        <dc:title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</dc:title>
        <dc:contributor>Universidad Pública de Navarra. Departamento de Ciencias</dc:contributor>
        <dc:contributor>Institute for Advanced Materials and Mathematics - INAMAT2</dc:contributor>
        <dc:contributor>Nafarroako Unibertsitate Publikoa. Zientziak Saila</dc:contributor>
        <dc:subject>Aluminum saline slags</dc:subject>
        <dc:subject>Industrial waste valorization</dc:subject>
        <dc:subject>High-value-added products</dc:subject>
        <dc:subject>Aluminum extraction</dc:subject>
        <dc:description>A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</dc:description>
        <dc:date>2022</dc:date>
        <dc:type>Artículo / Artikulua</dc:type>
        <dc:type>info:eu-repo/semantics/article</dc:type>
        <dc:identifier>Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</dc:identifier>
        <dc:identifier>2213-3437</dc:identifier>
        <dc:identifier>https://hdl.handle.net/2454/43773</dc:identifier>
        <dc:identifier>10.1016/j.jece.2022.107546</dc:identifier>
        <dc:language>eng</dc:language>
        <dc:relation>Journal of Environmental Chemical Engineering, 2022, 10 (3)</dc:relation>
        <dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/</dc:relation>
        <dc:relation>https://doi.org/10.1016/j.jece.2022.107546</dc:relation>
        <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
        <dc:rights>Acceso abierto / Sarbide irekia</dc:rights>
        <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
        <dc:rights>© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</dc:rights>
        <dc:publisher>Elsevier</dc:publisher>
        </oai_dc:dc>
      </d:Statement>
    </d:Descriptor>
  3. <d:Component id="2454_43773_1">
    1. <d:Resource mimeType="application/msword" ref="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/1/Jimenez_ComparativeStudy_MatCompl_1660721252737.docx" />
    </d:Component>
  4. <d:Component id="2454_43773_2">
    1. <d:Resource mimeType="application/pdf" ref="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/2/Jimenez_ComparativeStudy_1660720924571_41164.pdf" />
    </d:Component>
  </d:Item>
</d:DIDL>

dim

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<dim:dim schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
1. <dim:field authority="eced69e9-0d80-4eb5-83c0-9cc9c35b5451" confidence="300" element="creator" lang="es_ES" mdschema="dc">Jiménez, Alejandro</dim:field>
2. <dim:field authority="eced69e9-0d80-4eb5-83c0-9cc9c35b5451" confidence="300" element="creator" lang="es_ES" mdschema="dc">Rives, Vicente</dim:field>
3. <dim:field authority="eced69e9-0d80-4eb5-83c0-9cc9c35b5451" confidence="300" element="creator" lang="es_ES" mdschema="dc">Vicente, Miguel Ángel</dim:field>
4. <dim:field authority="eced69e9-0d80-4eb5-83c0-9cc9c35b5451" confidence="300" element="creator" lang="es_ES" mdschema="dc">Gil Bravo, Antonio</dim:field>
5. <dim:field element="date" mdschema="dc" qualifier="issued">2022</dim:field>
6. <dim:field element="identifier" lang="en" mdschema="dc" qualifier="citation">Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</dim:field>
7. <dim:field element="identifier" mdschema="dc" qualifier="issn">2213-3437</dim:field>
8. <dim:field element="identifier" mdschema="dc" qualifier="uri">https://hdl.handle.net/2454/43773</dim:field>
9. <dim:field element="identifier" mdschema="dc" qualifier="doi">10.1016/j.jece.2022.107546</dim:field>
10. <dim:field element="description" lang="en" mdschema="dc" qualifier="abstract">A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</dim:field>
11. <dim:field element="description" lang="en" mdschema="dc" qualifier="provenance">Submitted by Entrada dspace (entrada.dspace@unavarra.es) on 2022-08-17T10:38:45Z No. of bitstreams: 3 Jimenez_ComparativeStudy_MatCompl_1660721252737.docx: 11728732 bytes, checksum: 95286a0613fdb43ce97d7339fb469e25 (MD5) Jimenez_ComparativeStudy_1660720924571_41164.pdf: 1504590 bytes, checksum: fa41a0f0de609e8aea3c26b9b1a7a645 (MD5) dublinCore_20220817123842883.zip: 4838400 bytes, checksum: 233745bd573aca260d1099c4bf9e5515 (MD5)</dim:field>
12. <dim:field element="description" lang="en" mdschema="dc" qualifier="provenance">Approved for entry into archive by Cristina Teresa Tejera Martin (cristina.tejera@unavarra.es) on 2022-08-17T10:54:34Z (GMT) No. of bitstreams: 3 Jimenez_ComparativeStudy_MatCompl_1660721252737.docx: 11728732 bytes, checksum: 95286a0613fdb43ce97d7339fb469e25 (MD5) Jimenez_ComparativeStudy_1660720924571_41164.pdf: 1504590 bytes, checksum: fa41a0f0de609e8aea3c26b9b1a7a645 (MD5) dublinCore_20220817123842883.zip: 4838400 bytes, checksum: 233745bd573aca260d1099c4bf9e5515 (MD5)</dim:field>
13. <dim:field element="description" lang="en" mdschema="dc" qualifier="provenance">Made available in DSpace on 2022-08-17T10:54:34Z (GMT). No. of bitstreams: 3 Jimenez_ComparativeStudy_MatCompl_1660721252737.docx: 11728732 bytes, checksum: 95286a0613fdb43ce97d7339fb469e25 (MD5) Jimenez_ComparativeStudy_1660720924571_41164.pdf: 1504590 bytes, checksum: fa41a0f0de609e8aea3c26b9b1a7a645 (MD5) dublinCore_20220817123842883.zip: 4838400 bytes, checksum: 233745bd573aca260d1099c4bf9e5515 (MD5) Previous issue date: 2022</dim:field>
14. <dim:field element="description" lang="en" mdschema="dc" qualifier="sponsorship">This work was supported by 'Memoria de D. Samuel Solórzano Barruso' Foundation (FS/11-2020). AJ thanks Universidad de Salamanca and Banco Santander for a predoctoral contract. AG is grateful for financial support from the Spanish Ministry of Science and Innovation (MCIN/AEI/10.13039/501100011033) through project PID2020-112656RB-C21. AG also thanks Santander Bank for funding via the Research Intensification Program.</dim:field>
15. <dim:field element="format" lang="en" mdschema="dc" qualifier="mimetype">application/pdf</dim:field>
16. <dim:field element="format" lang="en" mdschema="dc" qualifier="mimetype">application/msword</dim:field>
17. <dim:field element="language" lang="en" mdschema="dc" qualifier="iso">eng</dim:field>
18. <dim:field element="publisher" lang="en" mdschema="dc">Elsevier</dim:field>
19. <dim:field element="relation" lang="en" mdschema="dc" qualifier="ispartof">Journal of Environmental Chemical Engineering, 2022, 10 (3)</dim:field>
20. <dim:field element="relation" lang="en" mdschema="dc" qualifier="projectID">info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/</dim:field>
21. <dim:field element="relation" mdschema="dc" qualifier="publisherversion">https://doi.org/10.1016/j.jece.2022.107546</dim:field>
22. <dim:field element="rights" lang="en" mdschema="dc">© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</dim:field>
23. <dim:field element="rights" mdschema="dc" qualifier="uri">http://creativecommons.org/licenses/by-nc-nd/4.0/</dim:field>
24. <dim:field element="rights" lang="es" mdschema="dc" qualifier="accessRights">Acceso abierto / Sarbide irekia</dim:field>
25. <dim:field element="rights" lang="en" mdschema="dc" qualifier="accessRights">info:eu-repo/semantics/openAccess</dim:field>
26. <dim:field element="subject" lang="en" mdschema="dc">Aluminum saline slags</dim:field>
27. <dim:field element="subject" lang="en" mdschema="dc">Industrial waste valorization</dim:field>
28. <dim:field element="subject" lang="en" mdschema="dc">High-value-added products</dim:field>
29. <dim:field element="subject" lang="en" mdschema="dc">Aluminum extraction</dim:field>
30. <dim:field element="title" lang="en" mdschema="dc">A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</dim:field>
31. <dim:field element="type" lang="es" mdschema="dc">Artículo / Artikulua</dim:field>
32. <dim:field element="type" lang="en" mdschema="dc">info:eu-repo/semantics/article</dim:field>
33. <dim:field element="type" lang="es" mdschema="dc" qualifier="version">Versión publicada / Argitaratu den bertsioa</dim:field>
34. <dim:field element="type" lang="en" mdschema="dc" qualifier="version">info:eu-repo/semantics/publishedVersion</dim:field>
35. <dim:field element="contributor" lang="es_ES" mdschema="dc" qualifier="department">Universidad Pública de Navarra. Departamento de Ciencias</dim:field>
36. <dim:field element="contributor" lang="es_ES" mdschema="dc" qualifier="department">Institute for Advanced Materials and Mathematics - INAMAT2</dim:field>
37. <dim:field element="contributor" lang="eu" mdschema="dc" qualifier="department">Nafarroako Unibertsitate Publikoa. Zientziak Saila</dim:field>
</dim:dim>

edm

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<rdf:RDF schemaLocation="http://www.w3.org/1999/02/22-rdf-syntax-ns# http://www.europeana.eu/schemas/edm">
1. <edm:ProvidedCHO about="https://hdl.handle.net/2454/43773">
  1. <dc:title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</dc:title>
  2. <dc:creator>Jiménez, Alejandro</dc:creator>
  3. <dc:creator>Rives, Vicente</dc:creator>
  4. <dc:creator>Vicente, Miguel Ángel</dc:creator>
  5. <dc:creator>Gil Bravo, Antonio</dc:creator>
  6. <dc:contributor>Universidad Pública de Navarra. Departamento de Ciencias</dc:contributor>
  7. <dc:contributor>Institute for Advanced Materials and Mathematics - INAMAT2</dc:contributor>
  8. <dc:contributor>Nafarroako Unibertsitate Publikoa. Zientziak Saila</dc:contributor>
  9. <dc:subject>Aluminum saline slags</dc:subject>
  10. <dc:subject>Industrial waste valorization</dc:subject>
  11. <dc:subject>High-value-added products</dc:subject>
  12. <dc:subject>Aluminum extraction</dc:subject>
  13. <dc:description>A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</dc:description>
  14. <dc:date>2022</dc:date>
  15. <dc:type>Artículo / Artikulua</dc:type>
  16. <dc:type>info:eu-repo/semantics/article</dc:type>
  17. <dc:identifier>Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</dc:identifier>
  18. <dc:identifier>2213-3437</dc:identifier>
  19. <dc:identifier>https://hdl.handle.net/2454/43773</dc:identifier>
  20. <dc:identifier>10.1016/j.jece.2022.107546</dc:identifier>
  21. <dc:language>eng</dc:language>
  22. <dc:relation>Journal of Environmental Chemical Engineering, 2022, 10 (3)</dc:relation>
  23. <dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/</dc:relation>
  24. <dc:relation>https://doi.org/10.1016/j.jece.2022.107546</dc:relation>
  25. <dc:publisher>Elsevier</dc:publisher>
  26. <edm:type>TEXT</edm:type>
  </edm:ProvidedCHO>
2. <ore:Aggregation about="https://hdl.handle.net/2454/43773">
  1. <edm:aggregatedCHO resource="https://hdl.handle.net/2454/43773" />
  2. <edm:dataProvider>Academica-e. Repositorio institucional de la Universidad Pública de Navarra</edm:dataProvider>
  3. <edm:isShownAt resource="https://hdl.handle.net/2454/43773" />
  4. <edm:object resource="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/6/Jimenez_ComparativeStudy_1660720924571_41164.pdf.jpg" />
  5. <edm:provider>Hispana</edm:provider>
  6. <edm:rights resource="http://creativecommons.org/licenses/by-nc-nd/4.0/" />
  </ore:Aggregation>
3. <edm:WebResource about="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/1/Jimenez_ComparativeStudy_MatCompl_1660721252737.docx">
  1. <edm:rights resource="http://creativecommons.org/licenses/by-nc-nd/4.0/" />
  </edm:WebResource>
4. <edm:WebResource about="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/2/Jimenez_ComparativeStudy_1660720924571_41164.pdf">
  1. <edm:rights resource="http://creativecommons.org/licenses/by-nc-nd/4.0/" />
  </edm:WebResource>
</rdf:RDF>

etdms

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<thesis schemaLocation="http://www.ndltd.org/standards/metadata/etdms/1.0/ http://www.ndltd.org/standards/metadata/etdms/1.0/etdms.xsd">
1. <title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</title>
2. <contributor>Universidad Pública de Navarra. Departamento de Ciencias</contributor>
3. <contributor>Institute for Advanced Materials and Mathematics - INAMAT2</contributor>
4. <contributor>Nafarroako Unibertsitate Publikoa. Zientziak Saila</contributor>
5. <subject>Aluminum saline slags</subject>
6. <subject>Industrial waste valorization</subject>
7. <subject>High-value-added products</subject>
8. <subject>Aluminum extraction</subject>
9. <description>A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</description>
10. <date>2022</date>
11. <type>Artículo / Artikulua</type>
12. <type>info:eu-repo/semantics/article</type>
13. <identifier>Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</identifier>
14. <identifier>2213-3437</identifier>
15. <identifier>https://hdl.handle.net/2454/43773</identifier>
16. <identifier>10.1016/j.jece.2022.107546</identifier>
17. <language>eng</language>
18. <relation>Journal of Environmental Chemical Engineering, 2022, 10 (3)</relation>
19. <relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/</relation>
20. <relation>https://doi.org/10.1016/j.jece.2022.107546</relation>
21. <rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</rights>
22. <rights>Acceso abierto / Sarbide irekia</rights>
23. <rights>info:eu-repo/semantics/openAccess</rights>
24. <rights>© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</rights>
25. <publisher>Elsevier</publisher>
</thesis>

marc

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<record schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd">
1. <leader>00925njm 22002777a 4500</leader>
2. <datafield ind1=" " ind2=" " tag="042">
  1. <subfield code="a">dc</subfield>
  </datafield>
3. <datafield ind1=" " ind2=" " tag="720">
  1. <subfield code="a">Jiménez, Alejandro</subfield>
  2. <subfield code="e">author</subfield>
  </datafield>
4. <datafield ind1=" " ind2=" " tag="720">
  1. <subfield code="a">Rives, Vicente</subfield>
  2. <subfield code="e">author</subfield>
  </datafield>
5. <datafield ind1=" " ind2=" " tag="720">
  1. <subfield code="a">Vicente, Miguel Ángel</subfield>
  2. <subfield code="e">author</subfield>
  </datafield>
6. <datafield ind1=" " ind2=" " tag="720">
  1. <subfield code="a">Gil Bravo, Antonio</subfield>
  2. <subfield code="e">author</subfield>
  </datafield>
7. <datafield ind1=" " ind2=" " tag="260">
  1. <subfield code="c">2022</subfield>
  </datafield>
8. <datafield ind1=" " ind2=" " tag="520">
  1. <subfield code="a">A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</subfield>
  </datafield>
9. <datafield ind1="8" ind2=" " tag="024">
  1. <subfield code="a">Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</subfield>
  </datafield>
10. <datafield ind1="8" ind2=" " tag="024">
  1. <subfield code="a">2213-3437</subfield>
  </datafield>
11. <datafield ind1="8" ind2=" " tag="024">
  1. <subfield code="a">https://hdl.handle.net/2454/43773</subfield>
  </datafield>
12. <datafield ind1="8" ind2=" " tag="024">
  1. <subfield code="a">10.1016/j.jece.2022.107546</subfield>
  </datafield>
13. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">Aluminum saline slags</subfield>
  </datafield>
14. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">Industrial waste valorization</subfield>
  </datafield>
15. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">High-value-added products</subfield>
  </datafield>
16. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">Aluminum extraction</subfield>
  </datafield>
17. <datafield ind1="0" ind2="0" tag="245">
  1. <subfield code="a">A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</subfield>
  </datafield>
</record>

mets

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<mets ID=" DSpace_ITEM_2454-43773" OBJID=" hdl:2454/43773" PROFILE="DSpace METS SIP Profile 1.0" TYPE="DSpace ITEM" schemaLocation="http://www.loc.gov/METS/ http://www.loc.gov/standards/mets/mets.xsd">
1. <metsHdr CREATEDATE="2024-04-30T20:25:33Z">
  1. <agent ROLE="CUSTODIAN" TYPE="ORGANIZATION">
    1. <name>Academica-e</name>
    </agent>
  </metsHdr>
2. <dmdSec ID="DMD_2454_43773">
  1. <mdWrap MDTYPE="MODS">
    1. <xmlData schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
      1. <mods:mods schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
        <mods:name>
        <mods:role>
        <mods:roleTerm type="text">department</mods:roleTerm>
        </mods:role>
        <mods:namePart>Universidad Pública de Navarra. Departamento de Ciencias</mods:namePart>
        </mods:name>
        <mods:name>
        <mods:role>
        <mods:roleTerm type="text">department</mods:roleTerm>
        </mods:role>
        <mods:namePart>Institute for Advanced Materials and Mathematics - INAMAT2</mods:namePart>
        </mods:name>
        <mods:name>
        <mods:role>
        <mods:roleTerm type="text">department</mods:roleTerm>
        </mods:role>
        <mods:namePart>Nafarroako Unibertsitate Publikoa. Zientziak Saila</mods:namePart>
        </mods:name>
        <mods:originInfo>
        <mods:dateIssued encoding="iso8601">2022</mods:dateIssued>
        </mods:originInfo>
        <mods:identifier type="citation">Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</mods:identifier>
        <mods:identifier type="issn">2213-3437</mods:identifier>
        <mods:identifier type="uri">https://hdl.handle.net/2454/43773</mods:identifier>
        <mods:identifier type="doi">10.1016/j.jece.2022.107546</mods:identifier>
        <mods:abstract>A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</mods:abstract>
        <mods:language>
        <mods:languageTerm authority="rfc3066">eng</mods:languageTerm>
        </mods:language>
        <mods:accessCondition type="useAndReproduction">© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</mods:accessCondition>
        <mods:subject>
        <mods:topic>Aluminum saline slags</mods:topic>
        </mods:subject>
        <mods:subject>
        <mods:topic>Industrial waste valorization</mods:topic>
        </mods:subject>
        <mods:subject>
        <mods:topic>High-value-added products</mods:topic>
        </mods:subject>
        <mods:subject>
        <mods:topic>Aluminum extraction</mods:topic>
        </mods:subject>
        <mods:titleInfo>
        <mods:title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</mods:title>
        </mods:titleInfo>
        <mods:genre>Artículo / Artikulua</mods:genre>
        </mods:mods>
      </xmlData>
    </mdWrap>
  </dmdSec>
3. <amdSec ID="TMD_2454_43773">
  1. <rightsMD ID="RIG_2454_43773">
    1. <mdWrap MDTYPE="OTHER" MIMETYPE="text/plain" OTHERMDTYPE="DSpaceDepositLicense">
      1. <binData>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</binData>
      </mdWrap>
    </rightsMD>
  </amdSec>
4. <amdSec ID="FO_2454_43773_1">
  1. <techMD ID="TECH_O_2454_43773_1">
    1. <mdWrap MDTYPE="PREMIS">
      1. <xmlData schemaLocation="http://www.loc.gov/standards/premis http://www.loc.gov/standards/premis/PREMIS-v1-0.xsd">
        <premis:premis>
        <premis:object>
        <premis:objectIdentifier>
        <premis:objectIdentifierType>URL</premis:objectIdentifierType>
        <premis:objectIdentifierValue>https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/1/Jimenez_ComparativeStudy_MatCompl_1660721252737.docx</premis:objectIdentifierValue>
        </premis:objectIdentifier>
        <premis:objectCategory>File</premis:objectCategory>
        <premis:objectCharacteristics>
        <premis:fixity>
        <premis:messageDigestAlgorithm>MD5</premis:messageDigestAlgorithm>
        <premis:messageDigest>95286a0613fdb43ce97d7339fb469e25</premis:messageDigest>
        </premis:fixity>
        <premis:size>11728732</premis:size>
        <premis:format>
        <premis:formatDesignation>
        <premis:formatName>application/msword</premis:formatName>
        </premis:formatDesignation>
        </premis:format>
        </premis:objectCharacteristics>
        <premis:originalName>Jimenez_ComparativeStudy_MatCompl_1660721252737.docx</premis:originalName>
        </premis:object>
        </premis:premis>
        </xmlData>
      </mdWrap>
    </techMD>
  </amdSec>
5. <amdSec ID="FO_2454_43773_2">
  1. <techMD ID="TECH_O_2454_43773_2">
    1. <mdWrap MDTYPE="PREMIS">
      1. <xmlData schemaLocation="http://www.loc.gov/standards/premis http://www.loc.gov/standards/premis/PREMIS-v1-0.xsd">
        <premis:premis>
        <premis:object>
        <premis:objectIdentifier>
        <premis:objectIdentifierType>URL</premis:objectIdentifierType>
        <premis:objectIdentifierValue>https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/2/Jimenez_ComparativeStudy_1660720924571_41164.pdf</premis:objectIdentifierValue>
        </premis:objectIdentifier>
        <premis:objectCategory>File</premis:objectCategory>
        <premis:objectCharacteristics>
        <premis:fixity>
        <premis:messageDigestAlgorithm>MD5</premis:messageDigestAlgorithm>
        <premis:messageDigest>fa41a0f0de609e8aea3c26b9b1a7a645</premis:messageDigest>
        </premis:fixity>
        <premis:size>1504590</premis:size>
        <premis:format>
        <premis:formatDesignation>
        <premis:formatName>application/pdf</premis:formatName>
        </premis:formatDesignation>
        </premis:format>
        </premis:objectCharacteristics>
        <premis:originalName>Jimenez_ComparativeStudy_1660720924571_41164.pdf</premis:originalName>
        </premis:object>
        </premis:premis>
        </xmlData>
      </mdWrap>
    </techMD>
  </amdSec>
6. <amdSec ID="FT_2454_43773_5">
  1. <techMD ID="TECH_T_2454_43773_5">
    1. <mdWrap MDTYPE="PREMIS">
      1. <xmlData schemaLocation="http://www.loc.gov/standards/premis http://www.loc.gov/standards/premis/PREMIS-v1-0.xsd">
        <premis:premis>
        <premis:object>
        <premis:objectIdentifier>
        <premis:objectIdentifierType>URL</premis:objectIdentifierType>
        <premis:objectIdentifierValue>https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/5/Jimenez_ComparativeStudy_1660720924571_41164.pdf.txt</premis:objectIdentifierValue>
        </premis:objectIdentifier>
        <premis:objectCategory>File</premis:objectCategory>
        <premis:objectCharacteristics>
        <premis:fixity>
        <premis:messageDigestAlgorithm>MD5</premis:messageDigestAlgorithm>
        <premis:messageDigest>49ed5fc44eb61d3f4c13afe50d3ab8a6</premis:messageDigest>
        </premis:fixity>
        <premis:size>61310</premis:size>
        <premis:format>
        <premis:formatDesignation>
        <premis:formatName>text/plain</premis:formatName>
        </premis:formatDesignation>
        </premis:format>
        </premis:objectCharacteristics>
        <premis:originalName>Jimenez_ComparativeStudy_1660720924571_41164.pdf.txt</premis:originalName>
        </premis:object>
        </premis:premis>
        </xmlData>
      </mdWrap>
    </techMD>
  </amdSec>
7. <fileSec>
  1. <fileGrp USE="ORIGINAL">
    1. <file ADMID="FO_2454_43773_1" CHECKSUM="95286a0613fdb43ce97d7339fb469e25" CHECKSUMTYPE="MD5" GROUPID="GROUP_BITSTREAM_2454_43773_1" ID="BITSTREAM_ORIGINAL_2454_43773_1" MIMETYPE="application/msword" SEQ="1" SIZE="11728732">
      1. <FLocat LOCTYPE="URL" href="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/1/Jimenez_ComparativeStudy_MatCompl_1660721252737.docx" type="simple" />
      </file>
    2. <file ADMID="FO_2454_43773_2" CHECKSUM="fa41a0f0de609e8aea3c26b9b1a7a645" CHECKSUMTYPE="MD5" GROUPID="GROUP_BITSTREAM_2454_43773_2" ID="BITSTREAM_ORIGINAL_2454_43773_2" MIMETYPE="application/pdf" SEQ="2" SIZE="1504590">
      1. <FLocat LOCTYPE="URL" href="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/2/Jimenez_ComparativeStudy_1660720924571_41164.pdf" type="simple" />
      </file>
    </fileGrp>
  2. <fileGrp USE="TEXT">
    1. <file ADMID="FT_2454_43773_5" CHECKSUM="49ed5fc44eb61d3f4c13afe50d3ab8a6" CHECKSUMTYPE="MD5" GROUPID="GROUP_BITSTREAM_2454_43773_5" ID="BITSTREAM_TEXT_2454_43773_5" MIMETYPE="text/plain" SEQ="5" SIZE="61310">
      1. <FLocat LOCTYPE="URL" href="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/5/Jimenez_ComparativeStudy_1660720924571_41164.pdf.txt" type="simple" />
      </file>
    </fileGrp>
  </fileSec>
8. <structMap LABEL="DSpace Object" TYPE="LOGICAL">
  1. <div ADMID="DMD_2454_43773" TYPE="DSpace Object Contents">
    1. <div TYPE="DSpace BITSTREAM">
      1. <fptr FILEID="BITSTREAM_ORIGINAL_2454_43773_1" />
      </div>
    2. <div TYPE="DSpace BITSTREAM">
      1. <fptr FILEID="BITSTREAM_ORIGINAL_2454_43773_2" />
      </div>
    </div>
  </structMap>
</mets>

mods

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<mods:mods schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
1. <mods:originInfo>
  1. <mods:dateIssued encoding="iso8601">2022</mods:dateIssued>
  </mods:originInfo>
2. <mods:identifier type="citation">Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</mods:identifier>
3. <mods:identifier type="issn">2213-3437</mods:identifier>
4. <mods:identifier type="uri">https://hdl.handle.net/2454/43773</mods:identifier>
5. <mods:identifier type="doi">10.1016/j.jece.2022.107546</mods:identifier>
6. <mods:abstract>A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</mods:abstract>
7. <mods:language>
  1. <mods:languageTerm>eng</mods:languageTerm>
  </mods:language>
8. <mods:accessCondition type="useAndReproduction">http://creativecommons.org/licenses/by-nc-nd/4.0/</mods:accessCondition>
9. <mods:accessCondition type="useAndReproduction">Acceso abierto / Sarbide irekia</mods:accessCondition>
10. <mods:accessCondition type="useAndReproduction">info:eu-repo/semantics/openAccess</mods:accessCondition>
11. <mods:accessCondition type="useAndReproduction">© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</mods:accessCondition>
12. <mods:subject>
  1. <mods:topic>Aluminum saline slags</mods:topic>
  </mods:subject>
13. <mods:subject>
  1. <mods:topic>Industrial waste valorization</mods:topic>
  </mods:subject>
14. <mods:subject>
  1. <mods:topic>High-value-added products</mods:topic>
  </mods:subject>
15. <mods:subject>
  1. <mods:topic>Aluminum extraction</mods:topic>
  </mods:subject>
16. <mods:titleInfo>
  1. <mods:title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</mods:title>
  </mods:titleInfo>
17. <mods:genre>Artículo / Artikulua</mods:genre>
18. <mods:genre>info:eu-repo/semantics/article</mods:genre>
</mods:mods>

oai_openaire

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<oaire:record schemaLocation="http://namespace.openaire.eu/schema/oaire/">
1. <datacite:titles>
  1. <datacite:title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</datacite:title>
  </datacite:titles>
2. <datacite:creators>
  1. <datacite:creator>
    1. <datacite:creatorName>Jiménez, Alejandro</datacite:creatorName>
    </datacite:creator>
  2. <datacite:creator>
    1. <datacite:creatorName>Rives, Vicente</datacite:creatorName>
    </datacite:creator>
  3. <datacite:creator>
    1. <datacite:creatorName>Vicente, Miguel Ángel</datacite:creatorName>
    </datacite:creator>
  4. <datacite:creator>
    1. <datacite:creatorName>Gil Bravo, Antonio</datacite:creatorName>
    2. <datacite:affiliation>Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa</datacite:affiliation>
    3. <datacite:nameIdentifier nameIdentifierScheme="ORCID" schemeURI="https://orcid.org">0000-0001-9323-5981</datacite:nameIdentifier>
    </datacite:creator>
  </datacite:creators>
3. <datacite:contributors>
  1. <datacite:contributor contributorType="ResearchGroup">
    1. <datacite:contributorName nameType="Organizational">Universidad Pública de Navarra. Departamento de Ciencias</datacite:contributorName>
    </datacite:contributor>
  2. <datacite:contributor contributorType="ResearchGroup">
    1. <datacite:contributorName nameType="Organizational">Institute for Advanced Materials and Mathematics - INAMAT2</datacite:contributorName>
    </datacite:contributor>
  3. <datacite:contributor contributorType="ResearchGroup">
    1. <datacite:contributorName nameType="Organizational">Nafarroako Unibertsitate Publikoa. Zientziak Saila</datacite:contributorName>
    </datacite:contributor>
  </datacite:contributors>
4. <oaire:fundingReferences>
  1. <oaire:fundingReference>
    1. <oaire:funderName>AEI</oaire:funderName>
    2. <oaire:funderStream>Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020</oaire:funderStream>
    3. <oaire:awardNumber>PID2020-112656RB-C21</oaire:awardNumber>
    </oaire:fundingReference>
  </oaire:fundingReferences>
5. <datacite:subject>Aluminum saline slags</datacite:subject>
6. <datacite:subject>Industrial waste valorization</datacite:subject>
7. <datacite:subject>High-value-added products</datacite:subject>
8. <datacite:subject>Aluminum extraction</datacite:subject>
9. <dc:description>A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</dc:description>
10. <dc:description>This work was supported by 'Memoria de D. Samuel Solórzano Barruso' Foundation (FS/11-2020). AJ thanks Universidad de Salamanca and Banco Santander for a predoctoral contract. AG is grateful for financial support from the Spanish Ministry of Science and Innovation (MCIN/AEI/10.13039/501100011033) through project PID2020-112656RB-C21. AG also thanks Santander Bank for funding via the Research Intensification Program.</dc:description>
11. <datacite:date dateType="Issued">2022</datacite:date>
12. <oaire:resourceType resourceTypeGeneral="literature" uri="http://purl.org/coar/resource_type/c_6501">article</oaire:resourceType>
13. <oaire:version uri="http://purl.org/coar/version/c_970fb48d4fbd8a85">VoR</oaire:version>
14. <datacite:identifier>https://hdl.handle.net/2454/43773</datacite:identifier>
15. <datacite:alternateIdentifiers>
  1. <datacite:alternateIdentifier alternateIdentifierType="ISSN">2213-3437</datacite:alternateIdentifier>
  2. <datacite:alternateIdentifier alternateIdentifierType="DOI">10.1016/j.jece.2022.107546</datacite:alternateIdentifier>
  </datacite:alternateIdentifiers>
16. <dc:language>eng</dc:language>
17. <dc:rights>© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</dc:rights>
18. <datacite:rights rightsURI="http://purl.org/coar/access_right/c_abf2">open access</datacite:rights>
19. <dc:format>application/pdf</dc:format>
20. <dc:format>application/msword</dc:format>
21. <dc:publisher>Elsevier</dc:publisher>
22. <oaire:file>https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/1/Jimenez_ComparativeStudy_MatCompl_1660721252737.docx</oaire:file>
23. <oaire:file>https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/2/Jimenez_ComparativeStudy_1660720924571_41164.pdf</oaire:file>
</oaire:record>

ore

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<atom:entry schemaLocation="http://www.w3.org/2005/Atom http://www.kbcafe.com/rss/atom.xsd.xml">
1. <atom:id>https://hdl.handle.net/2454/43773/ore.xml</atom:id>
2. <atom:link href="https://hdl.handle.net/2454/43773" rel="alternate" />
3. <atom:link href="https://hdl.handle.net/2454/43773/ore.xml" rel="http://www.openarchives.org/ore/terms/describes" />
4. <atom:link href="https://hdl.handle.net/2454/43773/ore.xml#atom" rel="self" type="application/atom+xml" />
5. <atom:published />
6. <atom:updated />
7. <atom:source>
  1. <atom:generator>Academica-e</atom:generator>
  </atom:source>
8. <atom:title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</atom:title>
9. <atom:category label="Aggregation" scheme="http://www.openarchives.org/ore/terms/" term="http://www.openarchives.org/ore/terms/Aggregation" />
10. <atom:category scheme="http://www.openarchives.org/ore/atom/modified" term="" />
11. <atom:category label="DSpace Item" scheme="http://www.dspace.org/objectModel/" term="DSpaceItem" />
12. <atom:link href="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/1/Jimenez_ComparativeStudy_MatCompl_1660721252737.docx" length="11728732" rel="http://www.openarchives.org/ore/terms/aggregates" title="Jimenez_ComparativeStudy_MatCompl_1660721252737.docx" type="application/msword" />
13. <atom:link href="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/2/Jimenez_ComparativeStudy_1660720924571_41164.pdf" length="1504590" rel="http://www.openarchives.org/ore/terms/aggregates" title="Jimenez_ComparativeStudy_1660720924571_41164.pdf" type="application/pdf" />
14. <oreatom:triples>
  1. <rdf:Description about="https://hdl.handle.net/2454/43773/ore.xml#atom">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceItem" />
    2. <dcterms:modified />
    </rdf:Description>
  2. <rdf:Description about="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/1/Jimenez_ComparativeStudy_MatCompl_1660721252737.docx">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>ORIGINAL</dcterms:description>
    </rdf:Description>
  3. <rdf:Description about="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/2/Jimenez_ComparativeStudy_1660720924571_41164.pdf">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>ORIGINAL</dcterms:description>
    </rdf:Description>
  4. <rdf:Description about="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/3/license.txt">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>LICENSE</dcterms:description>
    </rdf:Description>
  5. <rdf:Description about="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/4/dublinCore_20220817123842883.zip">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>SWORD</dcterms:description>
    </rdf:Description>
  6. <rdf:Description about="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/5/Jimenez_ComparativeStudy_1660720924571_41164.pdf.txt">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>TEXT</dcterms:description>
    </rdf:Description>
  7. <rdf:Description about="https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/6/Jimenez_ComparativeStudy_1660720924571_41164.pdf.jpg">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>THUMBNAIL</dcterms:description>
    </rdf:Description>
  </oreatom:triples>
</atom:entry>

qdc

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<qdc:qualifieddc schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd">
1. <dc:title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</dc:title>
2. <dc:creator>Jiménez, Alejandro</dc:creator>
3. <dc:creator>Rives, Vicente</dc:creator>
4. <dc:creator>Vicente, Miguel Ángel</dc:creator>
5. <dc:creator>Gil Bravo, Antonio</dc:creator>
6. <dc:contributor>Universidad Pública de Navarra. Departamento de Ciencias</dc:contributor>
7. <dc:contributor>Institute for Advanced Materials and Mathematics - INAMAT2</dc:contributor>
8. <dc:contributor>Nafarroako Unibertsitate Publikoa. Zientziak Saila</dc:contributor>
9. <dc:subject>Aluminum saline slags</dc:subject>
10. <dc:subject>Industrial waste valorization</dc:subject>
11. <dc:subject>High-value-added products</dc:subject>
12. <dc:subject>Aluminum extraction</dc:subject>
13. <dcterms:abstract>A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</dcterms:abstract>
14. <dcterms:issued>2022</dcterms:issued>
15. <dc:type>Artículo / Artikulua</dc:type>
16. <dc:type>info:eu-repo/semantics/article</dc:type>
17. <dc:identifier>Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</dc:identifier>
18. <dc:identifier>2213-3437</dc:identifier>
19. <dc:identifier>https://hdl.handle.net/2454/43773</dc:identifier>
20. <dc:identifier>10.1016/j.jece.2022.107546</dc:identifier>
21. <dc:language>eng</dc:language>
22. <dc:relation>Journal of Environmental Chemical Engineering, 2022, 10 (3)</dc:relation>
23. <dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/</dc:relation>
24. <dc:relation>https://doi.org/10.1016/j.jece.2022.107546</dc:relation>
25. <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
26. <dc:rights>Acceso abierto / Sarbide irekia</dc:rights>
27. <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
28. <dc:rights>© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</dc:rights>
29. <dc:publisher>Elsevier</dc:publisher>
</qdc:qualifieddc>

rdf

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<rdf:RDF schemaLocation="http://www.openarchives.org/OAI/2.0/rdf/ http://www.openarchives.org/OAI/2.0/rdf.xsd">
1. <ow:Publication about="oai:academica-e.unavarra.es:2454/43773">
  1. <dc:title>A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</dc:title>
  2. <dc:contributor>Universidad Pública de Navarra. Departamento de Ciencias</dc:contributor>
  3. <dc:contributor>Institute for Advanced Materials and Mathematics - INAMAT2</dc:contributor>
  4. <dc:contributor>Nafarroako Unibertsitate Publikoa. Zientziak Saila</dc:contributor>
  5. <dc:subject>Aluminum saline slags</dc:subject>
  6. <dc:subject>Industrial waste valorization</dc:subject>
  7. <dc:subject>High-value-added products</dc:subject>
  8. <dc:subject>Aluminum extraction</dc:subject>
  9. <dc:description>A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</dc:description>
  10. <dc:date>2022</dc:date>
  11. <dc:type>Artículo / Artikulua</dc:type>
  12. <dc:type>info:eu-repo/semantics/article</dc:type>
  13. <dc:identifier>Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</dc:identifier>
  14. <dc:identifier>2213-3437</dc:identifier>
  15. <dc:identifier>https://hdl.handle.net/2454/43773</dc:identifier>
  16. <dc:identifier>10.1016/j.jece.2022.107546</dc:identifier>
  17. <dc:language>eng</dc:language>
  18. <dc:relation>Journal of Environmental Chemical Engineering, 2022, 10 (3)</dc:relation>
  19. <dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/</dc:relation>
  20. <dc:relation>https://doi.org/10.1016/j.jece.2022.107546</dc:relation>
  21. <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
  22. <dc:rights>Acceso abierto / Sarbide irekia</dc:rights>
  23. <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  24. <dc:rights>© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</dc:rights>
  25. <dc:publisher>Elsevier</dc:publisher>
  </ow:Publication>
</rdf:RDF>

xoai

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<metadata schemaLocation="http://www.lyncode.com/xoai http://www.lyncode.com/xsd/xoai.xsd">
1. <element name="dc">
  1. <element name="creator">
    1. <element name="es_ES">
      1. <field name="value">Jiménez, Alejandro</field>
      2. <field name="authority">eced69e9-0d80-4eb5-83c0-9cc9c35b5451</field>
      3. <field name="confidence">300</field>
      4. <field name="value">Rives, Vicente</field>
      5. <field name="authority">c27328f2-68e0-4035-b476-b075d73df977</field>
      6. <field name="confidence">-1</field>
      7. <field name="value">Vicente, Miguel Ángel</field>
      8. <field name="authority">7c88e8ed-4954-4e07-9663-f17942e5e0b4</field>
      9. <field name="confidence">300</field>
      10. <field name="value">Gil Bravo, Antonio</field>
      11. <field name="authority">1806--0000-0001-9323-5981</field>
      12. <field name="confidence">600</field>
      </element>
    </element>
  2. <element name="date">
    1. <element name="issued">
      1. <element name="none">
        <field name="value">2022</field>
        </element>
      </element>
    </element>
  3. <element name="identifier">
    1. <element name="citation">
      1. <element name="en">
        <field name="value">Jiménez, A., Rives, V., Vicente, M.A., Gil, A.. (2022). A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags. Journal of Environmental Chemical Engineering . 10,3 .</field>
        </element>
      </element>
    2. <element name="issn">
      1. <element name="none">
        <field name="value">2213-3437</field>
        </element>
      </element>
    3. <element name="uri">
      1. <element name="none">
        <field name="value">https://hdl.handle.net/2454/43773</field>
        </element>
      </element>
    4. <element name="doi">
      1. <element name="none">
        <field name="value">10.1016/j.jece.2022.107546</field>
        </element>
      </element>
    </element>
  4. <element name="description">
    1. <element name="abstract">
      1. <element name="en">
        <field name="value">A management process for saline slags, one of the wastes from Secondary Aluminum Production, is proposed. The process begins with a grinding step, followed by washing with water, which removed the fluxing salts but provoking the hydrolysis of AlN, yielding Al(OH)3 and ammonia. Sieving of the solid generated an intermediate and a fine fraction. The first one was rich in metallic aluminum, and can also be returned to the Secondary Aluminum Production. The fine fraction was submitted to a extraction process in acid (HCl or HNO3) or alkaline (NaOH, KOH or CsOH) conditions, under reflux at 90 ºC, obtaining an Al(III) solution that can be used in the synthesis of aluminum-based solids. HCl (1-8 mol/L) and NaOH (1-4 mol/L) were used as reference solutions, HNO3, NaOH and KOH were used under specific conditions; the slag fraction:extraction solution solid:liquid ratio was also varied. The optimum extraction conditions were: extraction time 2 h, solid:liquid ratio 3:10, concentration 3 mol/L for the NaOH medium and 4 mol/L for the HCl medium. More than 30% of the aluminum present in the fraction smaller than 0.4 mm was recovered (the remaining aluminum was present as insoluble phases, corundum and spinel). Acid or basic media can be selected depending on the final use of Al(III) solutions, the basic medium leading to an Al(III) solution with a lower amount of impurities. The hazardousness of the solid obtained after the extraction process was greatly decreased, making possible the use of this solid residue in sectors such as construction.</field>
        </element>
      </element>
    2. <element name="provenance">
      1. <element name="en">
        <field name="value">Submitted by Entrada dspace (entrada.dspace@unavarra.es) on 2022-08-17T10:38:45Z No. of bitstreams: 3 Jimenez_ComparativeStudy_MatCompl_1660721252737.docx: 11728732 bytes, checksum: 95286a0613fdb43ce97d7339fb469e25 (MD5) Jimenez_ComparativeStudy_1660720924571_41164.pdf: 1504590 bytes, checksum: fa41a0f0de609e8aea3c26b9b1a7a645 (MD5) dublinCore_20220817123842883.zip: 4838400 bytes, checksum: 233745bd573aca260d1099c4bf9e5515 (MD5)</field>
        <field name="value">Approved for entry into archive by Cristina Teresa Tejera Martin (cristina.tejera@unavarra.es) on 2022-08-17T10:54:34Z (GMT) No. of bitstreams: 3 Jimenez_ComparativeStudy_MatCompl_1660721252737.docx: 11728732 bytes, checksum: 95286a0613fdb43ce97d7339fb469e25 (MD5) Jimenez_ComparativeStudy_1660720924571_41164.pdf: 1504590 bytes, checksum: fa41a0f0de609e8aea3c26b9b1a7a645 (MD5) dublinCore_20220817123842883.zip: 4838400 bytes, checksum: 233745bd573aca260d1099c4bf9e5515 (MD5)</field>
        <field name="value">Made available in DSpace on 2022-08-17T10:54:34Z (GMT). No. of bitstreams: 3 Jimenez_ComparativeStudy_MatCompl_1660721252737.docx: 11728732 bytes, checksum: 95286a0613fdb43ce97d7339fb469e25 (MD5) Jimenez_ComparativeStudy_1660720924571_41164.pdf: 1504590 bytes, checksum: fa41a0f0de609e8aea3c26b9b1a7a645 (MD5) dublinCore_20220817123842883.zip: 4838400 bytes, checksum: 233745bd573aca260d1099c4bf9e5515 (MD5) Previous issue date: 2022</field>
        </element>
      </element>
    3. <element name="sponsorship">
      1. <element name="en">
        <field name="value">This work was supported by 'Memoria de D. Samuel Solórzano Barruso' Foundation (FS/11-2020). AJ thanks Universidad de Salamanca and Banco Santander for a predoctoral contract. AG is grateful for financial support from the Spanish Ministry of Science and Innovation (MCIN/AEI/10.13039/501100011033) through project PID2020-112656RB-C21. AG also thanks Santander Bank for funding via the Research Intensification Program.</field>
        </element>
      </element>
    </element>
  5. <element name="format">
    1. <element name="mimetype">
      1. <element name="en">
        <field name="value">application/pdf</field>
        <field name="value">application/msword</field>
        </element>
      </element>
    </element>
  6. <element name="language">
    1. <element name="iso">
      1. <element name="en">
        <field name="value">eng</field>
        </element>
      </element>
    </element>
  7. <element name="publisher">
    1. <element name="en">
      1. <field name="value">Elsevier</field>
      </element>
    </element>
  8. <element name="relation">
    1. <element name="ispartof">
      1. <element name="en">
        <field name="value">Journal of Environmental Chemical Engineering, 2022, 10 (3)</field>
        </element>
      </element>
    2. <element name="projectID">
      1. <element name="en">
        <field name="value">info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/</field>
        </element>
      </element>
    3. <element name="publisherversion">
      1. <element name="none">
        <field name="value">https://doi.org/10.1016/j.jece.2022.107546</field>
        </element>
      </element>
    </element>
  9. <element name="rights">
    1. <element name="en">
      1. <field name="value">© 2022 The Author(s). This is an open access article under the CC BY-NC-ND license</field>
      </element>
    2. <element name="uri">
      1. <element name="none">
        <field name="value">http://creativecommons.org/licenses/by-nc-nd/4.0/</field>
        </element>
      </element>
    3. <element name="accessRights">
      1. <element name="es">
        <field name="value">Acceso abierto / Sarbide irekia</field>
        </element>
      2. <element name="en">
        <field name="value">info:eu-repo/semantics/openAccess</field>
        </element>
      </element>
    </element>
  10. <element name="subject">
    1. <element name="en">
      1. <field name="value">Aluminum saline slags</field>
      2. <field name="value">Industrial waste valorization</field>
      3. <field name="value">High-value-added products</field>
      4. <field name="value">Aluminum extraction</field>
      </element>
    </element>
  11. <element name="title">
    1. <element name="en">
      1. <field name="value">A comparative study of acid and alkaline aluminum extraction valorization procedure for aluminum saline slags</field>
      </element>
    </element>
  12. <element name="type">
    1. <element name="es">
      1. <field name="value">Artículo / Artikulua</field>
      </element>
    2. <element name="en">
      1. <field name="value">info:eu-repo/semantics/article</field>
      </element>
    3. <element name="version">
      1. <element name="es">
        <field name="value">Versión publicada / Argitaratu den bertsioa</field>
        </element>
      2. <element name="en">
        <field name="value">info:eu-repo/semantics/publishedVersion</field>
        </element>
      </element>
    </element>
  13. <element name="contributor">
    1. <element name="department">
      1. <element name="es_ES">
        <field name="value">Universidad Pública de Navarra. Departamento de Ciencias</field>
        <field name="value">Institute for Advanced Materials and Mathematics - INAMAT2</field>
        </element>
      2. <element name="eu">
        <field name="value">Nafarroako Unibertsitate Publikoa. Zientziak Saila</field>
        </element>
      </element>
    </element>
  </element>
2. <element name="bundles">
  1. <element name="bundle">
    1. <field name="name">ORIGINAL</field>
    2. <element name="bitstreams">
      1. <element name="bitstream">
        <field name="name">Jimenez_ComparativeStudy_MatCompl_1660721252737.docx</field>
        <field name="format">application/msword</field>
        <field name="size">11728732</field>
        <field name="url">https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/1/Jimenez_ComparativeStudy_MatCompl_1660721252737.docx</field>
        <field name="checksum">95286a0613fdb43ce97d7339fb469e25</field>
        <field name="checksumAlgorithm">MD5</field>
        <field name="sid">1</field>
        </element>
      2. <element name="bitstream">
        <field name="name">Jimenez_ComparativeStudy_1660720924571_41164.pdf</field>
        <field name="format">application/pdf</field>
        <field name="size">1504590</field>
        <field name="url">https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/2/Jimenez_ComparativeStudy_1660720924571_41164.pdf</field>
        <field name="checksum">fa41a0f0de609e8aea3c26b9b1a7a645</field>
        <field name="checksumAlgorithm">MD5</field>
        <field name="sid">2</field>
        </element>
      </element>
    </element>
  2. <element name="bundle">
    1. <field name="name">LICENSE</field>
    2. <element name="bitstreams">
      1. <element name="bitstream">
        <field name="name">license.txt</field>
        <field name="originalName">license.txt</field>
        <field name="format">text/plain; charset=utf-8</field>
        <field name="size">1822</field>
        <field name="url">https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/3/license.txt</field>
        <field name="checksum">f1b158a779256515758998ebbe33410f</field>
        <field name="checksumAlgorithm">MD5</field>
        <field name="sid">3</field>
        </element>
      </element>
    </element>
  3. <element name="bundle">
    1. <field name="name">SWORD</field>
    2. <element name="bitstreams">
      1. <element name="bitstream">
        <field name="name">dublinCore_20220817123842883.zip</field>
        <field name="description">Orignal SWORD deposit file</field>
        <field name="format">application/octet-stream</field>
        <field name="size">4838400</field>
        <field name="url">https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/4/dublinCore_20220817123842883.zip</field>
        <field name="checksum">233745bd573aca260d1099c4bf9e5515</field>
        <field name="checksumAlgorithm">MD5</field>
        <field name="sid">4</field>
        </element>
      </element>
    </element>
  4. <element name="bundle">
    1. <field name="name">TEXT</field>
    2. <element name="bitstreams">
      1. <element name="bitstream">
        <field name="name">Jimenez_ComparativeStudy_1660720924571_41164.pdf.txt</field>
        <field name="originalName">Jimenez_ComparativeStudy_1660720924571_41164.pdf.txt</field>
        <field name="description">Extracted text</field>
        <field name="format">text/plain</field>
        <field name="size">61310</field>
        <field name="url">https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/5/Jimenez_ComparativeStudy_1660720924571_41164.pdf.txt</field>
        <field name="checksum">49ed5fc44eb61d3f4c13afe50d3ab8a6</field>
        <field name="checksumAlgorithm">MD5</field>
        <field name="sid">5</field>
        </element>
      </element>
    </element>
  5. <element name="bundle">
    1. <field name="name">THUMBNAIL</field>
    2. <element name="bitstreams">
      1. <element name="bitstream">
        <field name="name">Jimenez_ComparativeStudy_1660720924571_41164.pdf.jpg</field>
        <field name="originalName">Jimenez_ComparativeStudy_1660720924571_41164.pdf.jpg</field>
        <field name="description">IM Thumbnail</field>
        <field name="format">image/jpeg</field>
        <field name="size">7085</field>
        <field name="url">https://academica-e.unavarra.es/xmlui/bitstream/2454/43773/6/Jimenez_ComparativeStudy_1660720924571_41164.pdf.jpg</field>
        <field name="checksum">0278269239cdc805f4ad1de089f47c52</field>
        <field name="checksumAlgorithm">MD5</field>
        <field name="sid">6</field>
        </element>
      </element>
    </element>
  </element>
3. <element name="others">
  1. <field name="handle">2454/43773</field>
  2. <field name="identifier">oai:academica-e.unavarra.es:2454/43773</field>
  3. <field name="lastModifyDate">2023-03-29 10:17:34.806</field>
  </element>
4. <element name="repository">
  1. <field name="name">Academica-e</field>
  2. <field name="mail">academica-e@unavarra.es</field>
  </element>
5. <element name="license">
  1. <field name="bin">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</field>
  </element>
</metadata>