title: Selective extraction of gold and platinum in water using ionic liquids. A simple two-step extraction process.
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.
authors.affiliation: LCME, Université de Savoie, Bâtiment Chartreuse, Savoie Technolac, 73376, Le Bourget du Lac Cedex, France. nicolas.papai@gmail.com
authors.forename: Nicolas
authors.initials: N
authors.lastname: Papaiconomou
authors.forename: Sébastien
authors.initials: S
authors.lastname: Génand-Pinaz
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Leveque
authors.forename: Sylvie
authors.initials: S
authors.lastname: Guittonneau