铜铅多金属混合矿石优先浮选工艺试验研究

某铜铅矿石含铜·0．96％，含铅1．04％，属于铜铅多金属混合矿石。对该矿石进行混合浮选，其浮选精矿的铜铅分离很困难。最终通过优先浮选铜一尾矿浮选铅的工艺流程，并采用组合药剂抑制铅，浮选闭路流程试验获得了较好的指标：铜精矿铜品位24．35％，含铅6．91％，铜回收率82．04％；铅精矿铅品位45．13％，含铜1．73％，铅回收率68．54％。

Experimental study on selective flotation of copper lead polymetallic ores

Bulk flotation was chosen to process a copper lead polymetallic ore with copper content of 0.96 % and lead of 1.04 %, but the process finds out that copper and lead are hard to separate. So a selective flotation of copper was applied and lead was recovered from railings. With combined agents used to depress lead and a closed circuit, sat- isfactory results were obtained. Copper concentrate grade is 24.35 % with lead content of 6.91% and copper recover- y rate of 82.04 % ; lead concentrate grade is 45.13 % with copper content of 1.73 % and lead recovery rate of 68.54 %.