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

被引:48
作者
Papaiconomou, Nicolas [1 ]
Genand-Pinaz, Sebastien [1 ]
Leveque, Jean-Marc [1 ]
Guittonneau, Sylvie [1 ]
机构
[1] Univ Savoie, LCME, F-73376 Savoie Technolac, Le Bourget Du L, France
关键词
METAL-IONS; SEPARATION; PALLADIUM; TOXICITY;
D O I
10.1039/c2dt32631k
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
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.
引用
收藏
页码:1979 / 1982
页数:4
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