铜铅混合精矿铜铅浮选分离试验研究

针对云南一大型矿山生产的铜铅混合精矿开展选矿试验,目的是实现铜铅分离。试验结果表明,采用硫化钠脱药,硫酸调浆,硫代硫酸钠与硫酸亚铁组合抑制剂进行铜铅分离浮选.成功实现了铜铅有效分离,获得了铜回收率90.66%、铜精矿品位20.01%.铅回收率96.56%、铅精矿品位45.51%的理想指标。

EXPERIMENTAL STUDY ON COPPER AND LEAD SEPARATION FROM MIXED COPPER AND LEAD CONCENTRATE BY FLOATATION

Processing tests on mixed copper and lead concentrate produced by a large copper mine in Yunnan Province were carried out aiming at the separation of copper and lead.The tests not only proved that copper and lead can be successfully separated by using Na_2S to remove reagents,H_2SO_4 to realize pulp conditioning,and the combined depressants of Na_2S_2O_3·5H_2O and FeSO_4·7H_2O to float copper and lead,but also achieved satisfying statistical results:copper recovery of 90.66%,copper concentrate grade of 20.01%, lead recovery of 96.56% and lead concentrate grade of 45.51%.