Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions

The separation of gallium from iron by solvent extraction from chloride media is challenging because the anionic chloridometalates, FeCl(4)(−) and GaCl(4)(−), display similar chemical properties. However, we report here that the selective separation of gallium from iron in HCl solution can be achiev...

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Detalles Bibliográficos
Autores principales: M. M. Kinsman, Luke, A. Morrison, Carole, T. Ngwenya, Bryne, B. Love, Jason
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570643/
https://www.ncbi.nlm.nih.gov/pubmed/32899701
http://dx.doi.org/10.3390/molecules25184047
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author M. M. Kinsman, Luke
A. Morrison, Carole
T. Ngwenya, Bryne
B. Love, Jason
author_facet M. M. Kinsman, Luke
A. Morrison, Carole
T. Ngwenya, Bryne
B. Love, Jason
author_sort M. M. Kinsman, Luke
collection PubMed
description The separation of gallium from iron by solvent extraction from chloride media is challenging because the anionic chloridometalates, FeCl(4)(−) and GaCl(4)(−), display similar chemical properties. However, we report here that the selective separation of gallium from iron in HCl solution can be achieved using the dual-purpose ionic liquid methyltrioctylammonium iodide in a solvent extraction process. In this case, the reduction of Fe(3+) to Fe(2+) by the iodide counterion was found to inhibit Fe transport, facilitating quantitative Ga extraction by the ionic liquid with minimal Fe extraction from 2 M HCl.
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spelling pubmed-75706432020-10-28 Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions M. M. Kinsman, Luke A. Morrison, Carole T. Ngwenya, Bryne B. Love, Jason Molecules Communication The separation of gallium from iron by solvent extraction from chloride media is challenging because the anionic chloridometalates, FeCl(4)(−) and GaCl(4)(−), display similar chemical properties. However, we report here that the selective separation of gallium from iron in HCl solution can be achieved using the dual-purpose ionic liquid methyltrioctylammonium iodide in a solvent extraction process. In this case, the reduction of Fe(3+) to Fe(2+) by the iodide counterion was found to inhibit Fe transport, facilitating quantitative Ga extraction by the ionic liquid with minimal Fe extraction from 2 M HCl. MDPI 2020-09-04 /pmc/articles/PMC7570643/ /pubmed/32899701 http://dx.doi.org/10.3390/molecules25184047 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
M. M. Kinsman, Luke
A. Morrison, Carole
T. Ngwenya, Bryne
B. Love, Jason
Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions
title Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions
title_full Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions
title_fullStr Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions
title_full_unstemmed Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions
title_short Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions
title_sort reducing the competition: a dual-purpose ionic liquid for the extraction of gallium from iron chloride solutions
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570643/
https://www.ncbi.nlm.nih.gov/pubmed/32899701
http://dx.doi.org/10.3390/molecules25184047
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