Abstract: Dabaoshan Mine is a large polymetallic sulfide deposit in the South China.The analysis shows its tailings contain abundant metal sulfides such as pyrites, pyrrhotite, sphalerite, chalcopyrite and galena, and also quartz and clay minerals, of which the content of metal element Zn is of the recovery value.In light of the tailings composition characteristics of and the available recovery technology for tailings, a new method for recovering Dabaoshan metal sulfide tailings is proposed as a result of the research, in which, the tailings are screened and gravity-separated into light and heavy fractions.The heavy minerals are treated by flotation to recover the metal element Zn, by oxidation and roasting to recover sulfur, by chlorination-roasting to recover other metal elements and by magnetization to recover iron minerals.The light fraction of gravity separation can be directly utilized or screened prior to utilization.This process can make use of tailings as resource without polluting the environment, realizing the aim of non-tailing mine.

Key words: Polymetallic sulphide mine, Tailings, Comprehensive utilization,Dabaoshan