铜铅多金属混合矿石优先浮选工艺试验研究

摘要

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—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％.%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 tailings.With combined agents used to depress lead and a closed circuit, satisfactory 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%.