某白钨矿选矿试验研究

Experimental Study on Separation of a Scheelite

针对某富含高钙脉石白钨矿石的特点,采用粗磨重选产出粗粒钨精矿,重选尾矿再磨后与细泥合并进行常温浮选—加温浮选产出细粒钨精矿的工艺流程,获得了重选精矿WO3品位68.93%、回收率82.71%,浮选精矿WO3品位66.7%、回收率9.34%,综合精矿WO3品位68.7%、回收率高达92.05%的优良试验结果。

In light of the characteristics of a high calcium scheelite ore, a process is tested which includes the separation of coarse tungsten concentrate by gravity separation after the primary grinding and the production of fine tungsten concentrate by normal temperature flotation and heated flotation of the railings of the said gravity separation after their regrinding and combination with slime. The concentrate of gravity separation has a WO3 grade of 68.93% at a recovery of 82.71% ; the flotation concentrate has WO3grade of 6.7% at a recovery of 9.34% and the combined concentrate ,WO3 grade of 68.7% at a WO3 recovery as high as 92.05% , indicating fine test results.