某铜钼分离作业中难分离微细粒级的浮选分离试验

对用旋流器分离出的西藏某铜钼矿选矿厂铜钼分离钼粗精矿中的微细泥和含大量微细泥的钼精选1尾矿进行单独分选处理是解决该选矿厂铜钼分离效果不理想的有效手段。在低矿浆浓度下对这种铜钼矿物粒度微细、含泥量高的难分离试样进行了选矿试验研究。结果表明,铜钼品位分别为23.12%和2.98%的试样采用1粗4精1扫、中矿顺序返回闭路流程处理,可取得钼品位为44.97%、钼回收率86.46%、含铜1.17%的钼精矿和铜品位为24.45%、铜回收率99.71%、含钼0.43%的铜精矿,铜钼分离效果较好。

Research on Flotation Separation of Microfine Refractory Ore in Copper-Molybdenum Separation Process

There are micro-fine mud existed in rough molybdenum concentrate separated from copper-molybdenum ore with a hydrocyclone in a dressing plant of Tibet and large amounts of micro-fine mud in tailing 1 of molybdenum separation.Treating the two kinds of micro-fine mud separately is an effective measure to solve the non-ideal result about copper-molybdenum separation.Under the condition of low pulp density，beneficiation on the refractory copper-molybdenum sample with micro-fine size and high degree of mud is carried out.The results show that the sample with Cu and Mo grade of 23.12% and 2.98% is treated by the closed-circuit process of one-roughing，four-cleaning，one-scavenging and middles back to the flow-sheet.By this method，Mo concentrate with Mo grade of 44.97%，and Mo recovery of 86.46%，and Cu of 1.17%，and Cu concentrate with Cu grade of 24.45%，Cu recovery of 99.71%，and Mo of 0.43% were achieved separately with good Cu-Mo separation effect.