蒙古国某铅锌矿石铜铅分离试验研究

蒙古国某铅锌矿石除含铅、锌外,还含有银、金和少量的铜等伴生有价金属,其中原矿中铜含量为0.2%。为降低铅精矿中铜含量,产出合格铜精矿,综合提高矿石中铜铅利用价值,对铜铅混浮及铜铅分离工艺进行了小型试验研究。研究结果表明,采用铜铅混浮—抑铅浮铜—混浮尾矿选锌流程可以较好地实现铜铅分离,闭路试验获得的铅精矿品位62.46%,含铜0.78%,铅回收率96.37%,铜精矿品位27.62%,含铅5.65%,铜回收率66.58%,为综合回收某铅锌矿中伴生低品位铜提供了技术依据。

Research on recovering associated copper from A Mongolia Lead-Zinc Ores

A systematic study has been carried out to make good use of a Mongolia Pb-Zn ore .At last, the flowsheet of preferential flotation of Cu-Pb, copper flotation with lead depression, zinc flotation from tailing of Cu-Pb preferential flotation was work out. The results show good separation indexes of copper minerals from lead concentrate. A close-circuit test has been conducted on the basis of open-circuit flotation experiments, from which a lead concentrate with 62.46% Pb and 96.37% recovery and a copper concentrate with 27.62% Cu and 66.58% recovery are obtained. This study could provide technical reference for other similar lead-zinc Ores.