Separation and purification of platinum and palladium

Details Separation and purification of platinum and palladium Separation and purification of platinum and palladium

C - Chemistry, Metallurgy

22

B

53/168

C22B 3/32 (2006.01) C01G 55/00 (2006.01) C22B 3/28 (2006.01)

Patent

CA 1086070

ABSTRACT A process for the separation of platinum and/or palladium from acid starting solutions containing the chlorocomplexes thereof together with other platinum group metals and/or base metals in 0.01 to 2M acid solutions comprises contacting the starting solution with a suitable solvent extractant; the solvent extractant being substantially water soluble, carried in an organic phase and comprising functional groups of the formula R2N-CH2-COOH wherein R is a long-chain alkyl group and thereafter separating the two phases and recovering the extracted platinum or palladium or both from the loaded solvent extractant.

280121

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