Experimental Study on Flotation Desulfurization of Tin-Containing Sulfide Ores by Acid-Free Activator SY-1
Process mineralogical analysis and flotation desulphurisation tests were carried out on tin sulphide ores in Wenshan,Yunnan province.The tin sulphide ore has tin and sulfur grades of 0.31％and 2.58％,respectively,with tin mostly found in cassiterite and sulfur mostly found in magnetic pyrite.The flotation closed-circuit experiment of"one coarse,two fine and two sweeps"can obtain good flotation indexes of 26.38％of concentrate sulphur grade,92.18％of sulphur removal rate,and 9.21％of tin loss rate under the conditions of 250 g/t of acid-free activator SY-1,150 g/t of butyl yellow,and 40 g/t of turpentine oil.This is a good indicator for the subsequent efficient recovery of cassiterite.It may set up the stage for a successful recovery of cassiterite later on.
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维普
