Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.9/3738 |
Resumo: | ABSTRACT: Ionic liquids (ILs), salts with a melting temperature below the boiling point of water, are one of the most recent fashion trends in modern chemistry. Nowadays, and taking into account the extensive research found in literature, it seems hard to imagine a sustainable world in the near future without the involvement of ILs, since they have low vapor pressure, are non-flammable, and display excellent chemical/electrochemical/thermal stabilities. Accordingly, ILs are considered to be advantageous replacers of the traditional organic solvents, therefore, much more environmentally-friendly. ILs can be easily produced to tune their physicochemical properties to specific applications, and that is the case currently occurring for several separation processes. This review aims to highlight and discuss some of the most relevant key-achievements, developed at laboratory scale, focusing on the use of ILs for the hydrometallurgical extraction of critical metals from urban mines, particularly the platinum-group metals (PGMs): ruthenium, rhodium, palladium, osmium, iridium, and platinum. A few decades of investigation brought a well-recognized scientific knowledge, still with a wide space to go, but work has yet to be conducted on testing the most promising ILs for the recycling of metals from real urban mines, and at a scaled-up level. Nevertheless, based on the most significant case-studies, the upcoming of ILs to recover critical metals from end-of-life devices for further valorization is assessed. |
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Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban MinesIonic liquidsLiquid-liquid extractionHydrometallurgical valorizationPlatinum-group metalsRecyclingUrban minesABSTRACT: Ionic liquids (ILs), salts with a melting temperature below the boiling point of water, are one of the most recent fashion trends in modern chemistry. Nowadays, and taking into account the extensive research found in literature, it seems hard to imagine a sustainable world in the near future without the involvement of ILs, since they have low vapor pressure, are non-flammable, and display excellent chemical/electrochemical/thermal stabilities. Accordingly, ILs are considered to be advantageous replacers of the traditional organic solvents, therefore, much more environmentally-friendly. ILs can be easily produced to tune their physicochemical properties to specific applications, and that is the case currently occurring for several separation processes. This review aims to highlight and discuss some of the most relevant key-achievements, developed at laboratory scale, focusing on the use of ILs for the hydrometallurgical extraction of critical metals from urban mines, particularly the platinum-group metals (PGMs): ruthenium, rhodium, palladium, osmium, iridium, and platinum. A few decades of investigation brought a well-recognized scientific knowledge, still with a wide space to go, but work has yet to be conducted on testing the most promising ILs for the recycling of metals from real urban mines, and at a scaled-up level. Nevertheless, based on the most significant case-studies, the upcoming of ILs to recover critical metals from end-of-life devices for further valorization is assessed.SpringerRepositório do LNEGPaiva, A. P.Nogueira, Carlos2022-02-03T16:44:14Z2021-04-01T00:00:00Z2021-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/3738engPaiva, A.P... [et.al.] - Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines. In: Waste and Biomass Valorization, 2021, Vol.12, pp. 1725-17471877-264110.1007/s12649-020-01115-01877-265Xinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T12:29:29Zoai:repositorio.lneg.pt:10400.9/3738Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:36:57.219222Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines |
title |
Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines |
spellingShingle |
Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines Paiva, A. P. Ionic liquids Liquid-liquid extraction Hydrometallurgical valorization Platinum-group metals Recycling Urban mines |
title_short |
Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines |
title_full |
Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines |
title_fullStr |
Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines |
title_full_unstemmed |
Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines |
title_sort |
Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines |
author |
Paiva, A. P. |
author_facet |
Paiva, A. P. Nogueira, Carlos |
author_role |
author |
author2 |
Nogueira, Carlos |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Repositório do LNEG |
dc.contributor.author.fl_str_mv |
Paiva, A. P. Nogueira, Carlos |
dc.subject.por.fl_str_mv |
Ionic liquids Liquid-liquid extraction Hydrometallurgical valorization Platinum-group metals Recycling Urban mines |
topic |
Ionic liquids Liquid-liquid extraction Hydrometallurgical valorization Platinum-group metals Recycling Urban mines |
description |
ABSTRACT: Ionic liquids (ILs), salts with a melting temperature below the boiling point of water, are one of the most recent fashion trends in modern chemistry. Nowadays, and taking into account the extensive research found in literature, it seems hard to imagine a sustainable world in the near future without the involvement of ILs, since they have low vapor pressure, are non-flammable, and display excellent chemical/electrochemical/thermal stabilities. Accordingly, ILs are considered to be advantageous replacers of the traditional organic solvents, therefore, much more environmentally-friendly. ILs can be easily produced to tune their physicochemical properties to specific applications, and that is the case currently occurring for several separation processes. This review aims to highlight and discuss some of the most relevant key-achievements, developed at laboratory scale, focusing on the use of ILs for the hydrometallurgical extraction of critical metals from urban mines, particularly the platinum-group metals (PGMs): ruthenium, rhodium, palladium, osmium, iridium, and platinum. A few decades of investigation brought a well-recognized scientific knowledge, still with a wide space to go, but work has yet to be conducted on testing the most promising ILs for the recycling of metals from real urban mines, and at a scaled-up level. Nevertheless, based on the most significant case-studies, the upcoming of ILs to recover critical metals from end-of-life devices for further valorization is assessed. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04-01T00:00:00Z 2021-04-01T00:00:00Z 2022-02-03T16:44:14Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.9/3738 |
url |
http://hdl.handle.net/10400.9/3738 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Paiva, A.P... [et.al.] - Ionic Liquids in the Extraction and Recycling of Critical Metals from Urban Mines. In: Waste and Biomass Valorization, 2021, Vol.12, pp. 1725-1747 1877-2641 10.1007/s12649-020-01115-0 1877-265X |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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