重—磁联合工艺回收某白钨矿试验

Research on the combined process of gravity-magnetic separation for recovering scheelite

摘要: 采用重选—强磁选联合工艺回收新疆某白钨矿,螺旋溜槽抛尾—摇床精选工艺获得了较好的重选指标：重选精矿WO3品位52.50%,回收率78.01%；重选中矿WO3品位2.69%,回收率4.90%。重选精矿再磨后强磁选可以获得钨精矿WO3品位65.06%,回收率76.44%。

Abstract: The paper is studied on the combination of gravity concentration and strong magnetic concentration process for the scheelite in Xinjiang province. The better separation indices can be obtained by the combined process, discarding tailing via spiral chute and concentrating via shaking table. The grade of gravity concentrate WO3 is 52.50%, and the recovery is 78.01%. The grade of gravity middling WO3 is 2.69%, and the recovery is 4.90%. After gravity concentration was reground and then graded by strong magnetic separation, the grade of final concentrate WO3 is 65.06%, and the recovery is 76.44%.