Selective extraction of gold and platinum in water using ionic liquids. A simple two-step extraction process

Nicolas Papaiconomou; Sébastien Génand-Pinaz; Jean-Marc Leveque; Sylvie Guittonneau

doi:10.1039/C2DT32631K

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Selective extraction of gold and platinum in water using ionic liquids. A simple two-step extraction process

Nicolas Papaiconomou,*^a Sébastien Génand-Pinaz,^a Jean-Marc Leveque^a and Sylvie Guittonneau^a

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* Corresponding authors

^a LCME, Université de Savoie, Bâtiment Chartreuse, Savoie Technolac, Le Bourget du Lac Cedex, France
E-mail: nicolas.papai@gmail.com
Tel: +33 479758838

Abstract

We report an all-ionic liquid process for the separation of tetrachloroaurate and hexachloroplatinate complexes. In a first step, gold is removed from water by liquid–liquid extraction with a hydrophobic ionic liquid, 1,2-dimethyl-3-octylimidazolium bis(trifluoromethylsulfonyl)imide. Platinum is subsequently extracted from the solution in the presence of KSCN using 1-methyl-3-octylimidazolium bis(trifluoromethylsulfonyl)imide.

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Article information

DOI: https://doi.org/10.1039/C2DT32631K
Article type: Communication
Submitted: 03 Nov 2012
Accepted: 29 Nov 2012
First published: 30 Nov 2012

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Dalton Trans., 2013,42, 1979-1982

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Selective extraction of gold and platinum in water using ionic liquids. A simple two-step extraction process

N. Papaiconomou, S. Génand-Pinaz, J. Leveque and S. Guittonneau, Dalton Trans., 2013, 42, 1979 DOI: 10.1039/C2DT32631K

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Dalton Transactions

Selective extraction of gold and platinum in water using ionic liquids. A simple two-step extraction process

Abstract

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Selective extraction of gold and platinum in water using ionic liquids. A simple two-step extraction process

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