Method for thiosulfate leaching of precious metal-containing...

Details Method for thiosulfate leaching of precious metal-containing... Method for thiosulfate leaching of precious metal-containing...

C - Chemistry, Metallurgy

22

B

C22B 11/00 (2006.01) C22B 3/12 (2006.01) C22B 3/44 (2006.01) C25C 1/20 (2006.01)

Patent

CA 2620644

Processes are provided for recovering precious metals from precious metal-containing materials. The processes comprise the steps of contacting the precious metal-containing material with a thiosulfate lixiviant to solubilize the precious metal, and converting formed polythionates to thiosulfate.

L'invention concerne des procédés permettant de récupérer des métaux précieux à partir de matériaux contenant des métaux précieux. Selon les procédés, il s'agit de contacter le matérial contenant des métaux précieux au moyen d'un lixiviant au thiosulfate pour solubiliser le métal précieux, puis de convertir les polythionates formés en thiosulfate.

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