某高砷金铜钴锡铋多金属矿石选矿工艺研究

Study on Beneficiation Process of a Au-Cu-Co-Sn-Bi Polymetallic Ore Containing High Arsenic

该多金属矿石矿物组成复杂,矿石中富含金、铜、钴、锡、铋、硫等有价元素。根据矿石性质,采用"优先选铜,砷、硫、铋混浮,砷、铋—硫分离,浮选尾矿摇床重选回收锡"的选矿工艺流程,较好地解决了该多金属矿的选矿难题,获得了较理想的经济技术指标。

It is a polymetallic ore with complicated mineralogical composition,containing some important valuable elements such as gold,copper,cobalt,tin,bismuth and sulfur.According to the characteristics of the ore,the process of selective flotation of copper,bulk flotation of As-S-Bi,separation of sulfur from arsenic and bismuth and recovering tin from flotation tailings by shaking table was adopted.Based on detailed experimental research,several technical problems experienced in treating process have been satisfactorily solved,and the techno-economic index obtained is well too.