METHOD OF FLOTATION SEPARATION OF BLACK JACK AND COPPER MINERAL FROM IRON SULPHIDE Russian patent published in 2014 - IPC B03D1/02 

FIELD: process engineering.

SUBSTANCE: invention relates to flotation extraction of sulphide minerals from concentrates and can be used in flotation concentration of sulphide copper-zinc pyrite- and pyrrotine-bearing polymetallic ores. Proposed method comprises conditioning of mineral suspension in the presence of complexing collector and complexing regulator, adding foaming agent and extraction of said sulphide minerals into foam product of flotation. Complexing zinc- and copper-selecting agent represents 1-phenyl-2,3-dimethyl 4-dimethylaminopyrazolone-5 that can form sold bond with said metals. Complexing regular represents ammonium thiocyanate or its mix with acetic acid, or copper sulphide. Complexing collector-to-complexing regulator ratio makes 1:0.25-1:3.

EFFECT: higher efficiency of separation.

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