某铜钼尾矿中金红石的浮选回收试验

某铜钼尾矿粒度较细,-0.074 mm粒级占68.63%,金红石含量为0.31%,在0.037~0.010 mm粒级有明显的富集现象,单体解离度达72.80%;脉石矿物以石英为主,还有少量易泥化的绿泥石和粘土矿物。为了提高资源的综合利用率,低成本、高效地回收该尾矿中的金红石,在不磨矿的情况下,采用2粗1扫4精、扫选精矿与精选1尾矿合并精选后返回、其他中矿顺序返回的流程对金红石进行了选矿试验,最终获得了Ti O2品位为64.59%,回收率为77.25%的金红石精矿,较好地实现了金红石的回收。

Experiment of Rutile Flotation Recovery from a Cu-Mo Tailing

A copper-molybdenum tailing with size distribution of -0.074 mm 68.63% is fine.Rutile is content of 0.31%,and obviously enriched in 0.037 ~ 0.010 mm size fractions,with single liberation degree of 72.80%.Gangue minerals are mainly quartz,and amount of easily sliming chlorite and clay minerals.In order to improve the comprehensive utilization of resources,realize rutile recovery from the tailings at low cost and high efficient,beneficiation experiments on rutile are carried out with no grinding operation,through two roughing-four cleaning-one scavenging,mixing concentrate of scavenging with tailing of first stage cleaning,other middles return to the flow-sheet in turn.Finally,rutile concentrate with TiO2 grade of 64.59% and recovery of 77.25% is received,realizing better rutile recovery index.