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Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals

Platinum group metals (PGMs) are a group of six metals with high market value and key importance to many industrial sectors. Due to their low prevalence in the Earth’s crust and high demand, these metals have been recognized as critical materials for many years. Along with economic development, the...

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Autores principales: Pianowska, Karolina, Kluczka, Joanna, Benke, Grzegorz, Goc, Karolina, Malarz, Joanna, Ochmański, Michał, Leszczyńska-Sejda, Katarzyna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10342344/
https://www.ncbi.nlm.nih.gov/pubmed/37444993
http://dx.doi.org/10.3390/ma16134681
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author Pianowska, Karolina
Kluczka, Joanna
Benke, Grzegorz
Goc, Karolina
Malarz, Joanna
Ochmański, Michał
Leszczyńska-Sejda, Katarzyna
author_facet Pianowska, Karolina
Kluczka, Joanna
Benke, Grzegorz
Goc, Karolina
Malarz, Joanna
Ochmański, Michał
Leszczyńska-Sejda, Katarzyna
author_sort Pianowska, Karolina
collection PubMed
description Platinum group metals (PGMs) are a group of six metals with high market value and key importance to many industrial sectors. Due to their low prevalence in the Earth’s crust and high demand, these metals have been recognized as critical materials for many years. Along with economic development, the natural resources of the platinum group metals are gradually depleting, which is accompanied by the need to recover PGMs from secondary sources. The solutions resulting from the processing of such materials are characterized by high content of impurities and low content of precious metals. For this reason, in order to obtain pure metals, it is extremely important to choose an effective, selective method for the recovery and separation of the platinum group metals. This review focuses on the most important aspects of the characteristics of the PGMs, including their properties and occurrence, the processing of natural and secondary raw materials and the role of liquid–liquid extraction in the selective separation of metals from this group, not only on a laboratory scale but, above all, on an industrial scale. In addition, this study collects information on the most commonly used, commercially available extractants, based on current reports, taken from the scientific literature.
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spelling pubmed-103423442023-07-14 Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals Pianowska, Karolina Kluczka, Joanna Benke, Grzegorz Goc, Karolina Malarz, Joanna Ochmański, Michał Leszczyńska-Sejda, Katarzyna Materials (Basel) Review Platinum group metals (PGMs) are a group of six metals with high market value and key importance to many industrial sectors. Due to their low prevalence in the Earth’s crust and high demand, these metals have been recognized as critical materials for many years. Along with economic development, the natural resources of the platinum group metals are gradually depleting, which is accompanied by the need to recover PGMs from secondary sources. The solutions resulting from the processing of such materials are characterized by high content of impurities and low content of precious metals. For this reason, in order to obtain pure metals, it is extremely important to choose an effective, selective method for the recovery and separation of the platinum group metals. This review focuses on the most important aspects of the characteristics of the PGMs, including their properties and occurrence, the processing of natural and secondary raw materials and the role of liquid–liquid extraction in the selective separation of metals from this group, not only on a laboratory scale but, above all, on an industrial scale. In addition, this study collects information on the most commonly used, commercially available extractants, based on current reports, taken from the scientific literature. MDPI 2023-06-28 /pmc/articles/PMC10342344/ /pubmed/37444993 http://dx.doi.org/10.3390/ma16134681 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Pianowska, Karolina
Kluczka, Joanna
Benke, Grzegorz
Goc, Karolina
Malarz, Joanna
Ochmański, Michał
Leszczyńska-Sejda, Katarzyna
Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals
title Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals
title_full Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals
title_fullStr Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals
title_full_unstemmed Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals
title_short Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals
title_sort solvent extraction as a method of recovery and separation of platinum group metals
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10342344/
https://www.ncbi.nlm.nih.gov/pubmed/37444993
http://dx.doi.org/10.3390/ma16134681
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