新型捕收剂KMC-1浮选分离某铜钼矿试验研究

Experimental Study on Flotation Separation of a Copper-molybdenum Ore with a Novel Collector KMC-1

为了查明新型捕收剂KMC-1对某铜钼矿铜钼分离的影响,通过浮选试验、筛分-水析的方法,对比了丁基黄药、AP、Y89(C_(6)H_(13)OSSNa)、异戊基黄药、丁铵黑药、KMC-1等捕收剂对浮选指标的影响。研究结果表明:新型捕收剂KMC-1优于其他5种捕收剂,采用“铜钼混合浮选—铜钼分离”工艺流程,可以获得产率0.021%、钼品位47.79%、钼回收率89.14%的钼精矿和产率1.85%、铜品位29.87%、铜回收率91.23%的铜精矿,钼精矿含铜0.51%、铜精矿含钼0.021%,铜钼互含较低,铜钼分离效果良好。捕收剂KMC-1可实现粗粒级条件下铜矿物及钼矿物的高效捕收,在较宽的粒级范围内,铜精矿铜品位及钼精矿钼品位较高。

In order to investigate the effect of the novel collector KMC-1 on the separation of copper and molybdenum from a copper-molybdenum ore,the different kinds of collectors including butyl xanthate,AP,Y89(C_(6)H_(13)OSSNa),isoamyl xanthate,ammonium butyl aerofloat and KMC-1 were compared through flotation tests and screening-hydraulic analysis.The results showed that the novel collector KMC-1 was better than the other five collectors.Using the flowsheet of“Cu-Mo bulk flotation–Cu-Mo separation”and KMC-1,the molybdenum concentrate with the yield of 0.021%,molybdenum grade of 47.79%and molybdenum recovery of 89.14%was obtained,as well as the copper concentrate with the yield of 1.85%,copper grade of 29.87%and copper recovery of 91.23%.Furthermore,the molybdenum concentrate contained 0.51%copper,and the copper concentrate contained 0.021%molybdenum,demonstrating that the mutual content of copper and molybdenum in the respective concentrate was low,and the separation of copper and molybdenum was realized.Additionally,copper minerals and molybdenum minerals in the coarse-grained range could be efficiently collected with KMC-1,resulting in higher grades of copper and molybdenum in concentrate.