Abstract: Based on ore property, valuable elements of copper and sulfur are contained in a copper sulphide ore of Xinjiang, and could be recovered through flotation. Therefore, copper sulfide mixed-separating flotation process experiment was done, under the condition of grinding fineness -0.074 mm occupied 60 percent, water glass took as regulator and amount 350 g/t, Z-200 took as collector and staged amount was （35+25）g/t, lime amount 2 000～3 000 g/t and through once roughing twice scavenging and twice regrade, copper sulfur concentrate was gotten, copper concentrate of copper grade 23.55% and recovery rate 93.76% and sulfur concentrate of sulfur grade 38.84% and recovery rate 52.37% were obtained through once roughing once scavenging and twice regrade copper and sulfur separation, technical indexs of experiment were good.

Key words: Flotation, Copper sulphide ore, Collector