C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/08 (2006.01) C22B 3/06 (2006.01) C22B 3/10 (2006.01) C22B 11/00 (2006.01) C25B 1/24 (2006.01)
Patent
CA 2141312
2141312 9403649 PCTABS00030 A process for leaching platinum and palladium wherein an aqueous leaching solution containing bromine and bromide ion contacts a precious metal source to produce an aqueous leachate. A precursor composition for producing an aqueous leaching solution for leaching platinum and palladium. A process for electrogenerating bromine and a process for leaching platinum and palladium wherein bromine is electrogenerated and contacts a precious metal source to produce an aqueous leachate. A process for leaching gold, silver, platinum and palladium wherein bromine is electrogenerated from a solution containing chloride ions and bromide ions.
Borden Dennis W.
Dadgar Ahmad
Favstritsky Nicolai A.
Howarth Jonathan N.
Mckeown Julie A.
Great Lakes Chemical Corporation
Ridout & Maybee Llp
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