Abstract: In order to improve the recovery and utilization rate of resources，improve the concentrator and the surrounding environment，and realize the energy saving and emission reduction of the concentrator， aiming at the problems of a large number of valuable resources in the tailings of the concentrator are not ef⁃ fectively recycled，and a large number of tailings are piled up to pollute the environment and occupy land， the tailings properties are analyzed and the experimental study of copper sulfur mixed flotation-copper sul⁃ fur separation flotation-copper concentrate flotation is carried out.The experimental results show that the copper concentrate with copper grade of 10.34% and copper recovery rate of 45.67%，and the sulfur concen⁃ trate with sulfur grade of 38.22% and sulfur recovery rate of 75.69% are finally obtained. The copper and sulfur resources are effectively recovered，and the recovery and reuse of valuable resources in tailings are re⁃ alized.

Key words: iron separation tailings, copper sulfur resources, mixed flotation, separation flotation