Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials

The development of the population¿s well-being involves the use of different raw materials. However, metallic elements such as copper are currently scarce due to their intensive use in different sectors. Therefore, new sources of raw materials that provide these elements, are of lower cost, and use...

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Autores: Terrones Saeta, Juan María, Suárez Macías, Jorge, Castañón García, Ana María, Corpas Iglesias, Francisco Antonio
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad Alfonso X el Sabio
Repositorio:Repositorio Institucional de la Universidad Alfonso X el Sabio
Idioma:inglés
OAI Identifier:oai:archive.uax.com:20.500.12080/39384
Acceso en línea:https://hdl.handle.net/20.500.12080/39384
Access Level:acceso abierto
Palabra clave:hydrometallurgy
metallic elements recovery
mining waste
bituminous mixture
circular economy
sustainability
construction materials
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spelling Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction MaterialsTerrones Saeta, Juan MaríaSuárez Macías, JorgeCastañón García, Ana MaríaCorpas Iglesias, Francisco Antoniohydrometallurgymetallic elements recoverymining wastebituminous mixturecircular economysustainabilityconstruction materialsThe development of the population¿s well-being involves the use of different raw materials. However, metallic elements such as copper are currently scarce due to their intensive use in different sectors. Therefore, new sources of raw materials that provide these elements, are of lower cost, and use waste for their extraction must be sought. For this reason, in this research, different waste dumps of the mining district of Linares (Spain) are studied to evaluate the existence of recoverable copper by hydrometallurgical techniques. The material from the waste dump selected as potentially viable is leached with different sulfuric acid solutions (0.25, 0.5, 1, and 2 mol) and at different times, obtaining copper concentrations usable for subsequent hydrometallurgical processes. In addition, in order to develop an environmental hydrometallurgy, the leach waste is characterized, and bituminous mixtures are made with it. The results of the present investigation showed that it was possible to recover 80% of the copper in the waste dumps of the Linares mining district with 1 and 2 mol solutions of sulfuric acid. At the same time, the waste from the leaching process was found to be suitable for use as an aggregate in bituminous mixtures. Therefore, bituminous mixtures were conformed, and it was obtained that the optimum percentage of bituminous emulsion was 6.95% for the proposed granulometry. This emulsion percentage, which corresponds to a residual bitumen percentage of 4.17%, showed particle loss test results of 14% and 18% after immersion. In addition, the stability test values for the Marshall test with the above-mentioned bitumen emulsion percentage and leaching waste showed a stability of 8.99 KN. This fact demonstrates the quality of the bituminous mixture made with the leaching waste for use in bituminous mixtures. Consequently, it can be affirmed that in the present investigation, a significant percentage of copper has been extracted from the waste dumps of the mining district of Linares (Spain) and that the waste after processing can be used in bituminous mixtures, there being a closed cycle of materials in which no waste is producedMDPIUAX Archive20212021-01-0120212021-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.12080/39384reponame:Repositorio Institucional de la Universidad Alfonso X el Sabioinstname:Universidad Alfonso X el SabioInglésengopen accesshttp://purl.org/coar/access_right/c_abf2CC-BYhttp://creativecommons.org/licenses/by/4.0/deed.esinfo:eu-repo/semantics/openAccessoai:archive.uax.com:20.500.12080/393842026-05-28T12:40:21Z
dc.title.none.fl_str_mv Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials
title Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials
spellingShingle Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials
Terrones Saeta, Juan María
hydrometallurgy
metallic elements recovery
mining waste
bituminous mixture
circular economy
sustainability
construction materials
title_short Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials
title_full Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials
title_fullStr Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials
title_full_unstemmed Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials
title_sort Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials
dc.creator.none.fl_str_mv Terrones Saeta, Juan María
Suárez Macías, Jorge
Castañón García, Ana María
Corpas Iglesias, Francisco Antonio
author Terrones Saeta, Juan María
author_facet Terrones Saeta, Juan María
Suárez Macías, Jorge
Castañón García, Ana María
Corpas Iglesias, Francisco Antonio
author_role author
author2 Suárez Macías, Jorge
Castañón García, Ana María
Corpas Iglesias, Francisco Antonio
author2_role author
author
author
dc.contributor.none.fl_str_mv UAX Archive
dc.subject.none.fl_str_mv hydrometallurgy
metallic elements recovery
mining waste
bituminous mixture
circular economy
sustainability
construction materials
topic hydrometallurgy
metallic elements recovery
mining waste
bituminous mixture
circular economy
sustainability
construction materials
description The development of the population¿s well-being involves the use of different raw materials. However, metallic elements such as copper are currently scarce due to their intensive use in different sectors. Therefore, new sources of raw materials that provide these elements, are of lower cost, and use waste for their extraction must be sought. For this reason, in this research, different waste dumps of the mining district of Linares (Spain) are studied to evaluate the existence of recoverable copper by hydrometallurgical techniques. The material from the waste dump selected as potentially viable is leached with different sulfuric acid solutions (0.25, 0.5, 1, and 2 mol) and at different times, obtaining copper concentrations usable for subsequent hydrometallurgical processes. In addition, in order to develop an environmental hydrometallurgy, the leach waste is characterized, and bituminous mixtures are made with it. The results of the present investigation showed that it was possible to recover 80% of the copper in the waste dumps of the Linares mining district with 1 and 2 mol solutions of sulfuric acid. At the same time, the waste from the leaching process was found to be suitable for use as an aggregate in bituminous mixtures. Therefore, bituminous mixtures were conformed, and it was obtained that the optimum percentage of bituminous emulsion was 6.95% for the proposed granulometry. This emulsion percentage, which corresponds to a residual bitumen percentage of 4.17%, showed particle loss test results of 14% and 18% after immersion. In addition, the stability test values for the Marshall test with the above-mentioned bitumen emulsion percentage and leaching waste showed a stability of 8.99 KN. This fact demonstrates the quality of the bituminous mixture made with the leaching waste for use in bituminous mixtures. Consequently, it can be affirmed that in the present investigation, a significant percentage of copper has been extracted from the waste dumps of the mining district of Linares (Spain) and that the waste after processing can be used in bituminous mixtures, there being a closed cycle of materials in which no waste is produced
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01
2021
2021-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.12080/39384
url https://hdl.handle.net/20.500.12080/39384
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
CC-BY
http://creativecommons.org/licenses/by/4.0/deed.es
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
CC-BY
http://creativecommons.org/licenses/by/4.0/deed.es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositorio Institucional de la Universidad Alfonso X el Sabio
instname:Universidad Alfonso X el Sabio
instname_str Universidad Alfonso X el Sabio
reponame_str Repositorio Institucional de la Universidad Alfonso X el Sabio
collection Repositorio Institucional de la Universidad Alfonso X el Sabio
repository.name.fl_str_mv
repository.mail.fl_str_mv
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