Method and a reagent mixture for removing metal ions from an...

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B01J 20/22 (2006.01) C01G 3/00 (2006.01) C01G 9/00 (2006.01) C01G 11/00 (2006.01) C01G 37/00 (2006.01) C01G 45/00 (2006.01) C01G 49/00 (2006.01) C01G 53/00 (2006.01) C22B 3/38 (2006.01)

Patent

CA 1092084

Abstract: A liquid-liquid extraction process is disclosed, in which an aqueous solution, containing metal ions, is contacted with an organic liquid substantially insoluble water. The organic liquid contains two water-insoluble reagents, viz. a diester of dithiophosphoric acid and an organic phosphate, in a pre- ferred volume ratio of between 1:10 and 2:1. The organic liquid may also contain a diluent for the reagents.

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