Extraction of silver and palladium metals from aqueous...

Details Extraction of silver and palladium metals from aqueous... Extraction of silver and palladium metals from aqueous...

C - Chemistry, Metallurgy

22

B

53/168, 53/232

C22B 3/00 (2006.01) C01G 5/00 (2006.01) C01G 55/00 (2006.01) C22B 3/38 (2006.01)

Patent

CA 1223741

EXTRACTION OF SILVER AND PALLADIUM METALS FROM AQUEOUS SOLUTIONS USING TERTIARY PHOSPHINE SULFIDES Abstract of the Disclosure Silver or palladium metals are selectively extrac- ted from aqueous sulfuric acid solution by contacting the solution with a water-immiscible organic solvent extraction solution comprising a tertiary phosphine sulfide compound; separating the resulting silver- or palladium- phosphine sulfide complex from the aqueous solution; and recovering the silver or palladium metal from the complex by suitable stripping means.

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