Flotation process

Details Flotation process Flotation process

B - Operations, Transporting

03

D

361/3

B03D 1/02 (2006.01) B03D 1/001 (2006.01)

Patent

CA 1101566

ABSTRACT A method for separating copper sulphides from lead sulphides contained in particulate copper lead sulphide concentrates by a flotation process in which an aqueous alkali metal silicate-alkali metal dichromate reagent solution is added in the flotation step to depress the lead bearing sulphides. The copper lead sulphide concentrate may be obtained from a complex copper-lead-zinc ore, in which case the majority of the zinc is first removed by conventional flotation techniques and the copper lead sulphide concentrate treated with activated carbon prior to addition of the silicate-dichromate reagent solution.

322401

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