Cyanidation of gold ores

Details Cyanidation of gold ores Cyanidation of gold ores

C - Chemistry, Metallurgy

22

B

53/226

C22B 11/08 (2006.01) B03B 1/04 (2006.01) B03B 9/00 (2006.01) B03D 3/06 (2006.01)

Patent

CA 1174055

ABSTRACT OF THE DISCLOSURE This invention relates to a cyanide process for the recovery of gold from complex sulphide bearing gold ores wherein in a preferred embodiment of the invention, a pulp of the ore is subjected to aeration conditioning at at least one optimum pH point resulting in gold recoveries exceeding 90%, reduction in cyanidation of gold dissolution time to a maximum of 24 hours, and making it possible to recycle substantially all of the barren solution.

391260

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