【摘要】 铜铅混合浮选中,加入Na2S能够降低矿浆中Cu2+和Pb2+的浓度,防止闪锌矿被这两种金属离子活化,从而使闪锌矿得到较好抑制。针对某复杂铜铅锌多金属矿,以混合黄药为捕收剂,Na2S+Na2SO3+ZnSO4为组合抑制剂,经一次粗选、一次精选和一次扫选的开路试验,获得铜品位为11.21%、铜回收率为87.40%、铅品位为44.09%、铅回收率为79.38%、锌品位为2.08%的铜铅混合精矿。更多还原

【Abstract】 The addition of Sodium sulfide can reduce the concentration of Cu2+ and Pb2+,thus it can prevent the activation of sphalerite by Cu2+ and Pb2+,resulting in good depression of sphalerite in bulk copper-lead flotation.In this paper,the flotation of a complex copper-lead-zinc multi-metallic sulphide ore is carried out with combined xanthate as collector and combined Na2S+Na2SO3+ZnSO4 as depressant.After the open circuit test of one roughing,one scavenging and one cleaning,a mixed Cu-Pb concentrate with 11.21 % Cu grade,87.40 % copper recovery,44.09 % Pb grade,79.38 % lead recovery,and 2.08 % Zn grade is obtained.更多还原