Abstract: A Pb-Zn sulfide ore from Xinjiang contains 1.06% Pb and 4.18% Zn,and has recovery utilization value. Aimed at recovering Pb and Zn minerals,the research on beneficiation was carried out in detail. The results show that,Pb-Zn preferential flotation Process could obtain Pb concentrate with Pb grade of 54.30% and Pb recovery of 80.94%,Zn grade of 5.56% and Zn occupation of 2.10%,and Zn concentrate with Zn grade of 50.33% and Zn recovery of 83.44%,Pb grade of 0.63% and Pb occupation of 4.05%. This process not only achieved the effective separation between Pb and Zn minerals,but also obtained better experimental index.

Key words: Pb-Zn sulfide ore, Beneficiation, Preferential flotation