Selective flotation of gold

Details Selective flotation of gold Selective flotation of gold

B - Operations, Transporting

03

D

361/23

B03D 1/014 (2006.01) B03D 1/004 (2006.01) B03D 1/012 (2006.01) B03D 1/02 (2006.01) C07F 9/17 (2006.01)

Patent

CA 2015604

Collector compositions for use in froth flotation processes for the beneficiation of gold, silver and platinum group values from base metal ores are disclosed. The collector compositions comprise at least one monothiophosphate compound selected from compounds of the formula: (see formula I) wherein each R is a C2-C8 alkyl or a (see formula II) radical, R1 and R2 are, individually, hydrogen or C1-C4 alkyl radicals, n is 0 or 1 and X is a cation. The use of the monothiophosphate collectors provides excellent selective recovery of gold, silver and platinum group metal values in froth flotation processes conducted under alkaline conditions.

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