A copper beneficiation methods lead - zinc ores

The present invention discloses a method of dressing a copper lead - zinc ores, nonferrous metal belonging to the technical field. Technical proposal is based on the carbon-containing fine particles disseminated complex nature of the characteristics of Cu, Pb sulfur polymetallic ores, using pre-decarbonization - Process selected from zinc tailings Sulfur - A mixture of copper and lead portion of the floating - Separation Chalcopyrite process, and implemented by adding finely ground concentrated manner drugs off depth, effectively eliminate the effect of slime on the flotation of copper and lead in the mixing section while the floating operation using highly efficient inhibitor T721 A8 collector lead and copper separation, to achieve effective separation and recycling of copper, lead, zinc, sulfur, significantly reduced cross-containing concentrate.