C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/28 (2006.01) C22B 11/08 (2006.01)
Patent
CA 2270744
An improved method is provided for the liquid-liquid extraction of gold from an aqueous liquid containing gold-cyanide complex comprising the steps of providing an aqueous solution which comprises a gold-cyanide complex, contacting the solution with a quaternary ammonium hydroxide extractant resulting in the formation of an insoluble gold-quaternary ammonium complex, and recovering the gold-quaternary ammonium complex.
Dunajew Alexander
Mcfadden Fincham
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