Flotation test was carried out for a fine refractory copper mine in Xizang Province.Through grinding fineness test,flotation concentration test,collector type and dosage test,activator dosage test and enhanced recovery of associated elements test,the flotation process parameters and reagent system were optimized.Under the conditions of optimum process parameters and chemical regime,closed-circuit test can obtain concentrate with Cu grade of 28.33%,Au grade of 12.60 g/t,Ag grade of 564.32 g/t and Mo grade of 0.62%.Cu recovery was 91.31%,Au recovery was 80.59%,Ag recovery was 66.69%and Mo recovery was 69.68%.
copper mineflotationfine grainhard to chooseflotation reagent