Selective flotation of nickel sulfide ores

Details Selective flotation of nickel sulfide ores Selective flotation of nickel sulfide ores

B - Operations, Transporting

03

D

361/5

B03D 1/02 (2006.01) B03D 1/06 (2006.01) C25C 1/08 (2006.01)

Patent

CA 1156380

ABSTRACT OF THE INVENTION PC-2115 A process for beneficiating a nickel sulfide ore in a selective manner comprising wet grinding the ore to liberation of minerals in the presence of sodium carbonate, treating the ground pulp at a pH of about 10 with sodium cyanide to depress the mineral content, conditioning the pulp, raising the redox potential of the pulp in a controlled manner, introducing therein a strong collector, floating a pentlandite concentrate, and thereafter floating a chalcopyrite concentrate.

373065

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