Abstract: In order to improve the copper, lead and zinc flotation index of Xinjiang Cu-Pb-Zn polymetallic ore, the flotation tests are made.With the use of new agent ester-8 and B6 in close-circuit tests, copper concentrate with Cu grade of 22.61% and recovery of 50.19%, lead concentrate with Pb grade of 52.57% and recovery of 81.24%, and zinc concentrate with Zn grade of 55.46% and recovery of 91.40% were obtained.Comparing with the current agents scheme, the copper, lead and zinc recoveries were increased by 4.63, 1.77 and 1.34% respectively with the new agent.

Key words: Cu-Pb-Zn polymetallic ore, New Pharmacy, Flotation