Flotation of sulfide minerals

C - Chemistry – Metallurgy – 11 – D

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361/23

C11D 1/00 (2006.01) B03D 1/02 (2006.01)

Patent

CA 1105156

26, 386 ABSTRACT OF THE DISCLOSURE N-alkyl, O-alkylthionocarbamates are soluble in con- centrated aqueous solutions of ammonium or alkali metal salts of dialkyldithiophosphinates and the resulting mixture provides improved copper recovery by froth flotation.

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