微山稀土矿尾矿综合利用试验研究

Test study on comprehensive utilization of tailing in Weishan Rare Earth Mine

根据矿样性质 ,对微山稀土矿现生产尾矿中的有价元素进行了综合回收研究 ,结果表明 :用浮选法采用合理的药剂制度和工艺流程 ,能获得S含量大于 36%的硫精矿和BaSO4 含量大于 93%的重晶石精矿 ,回收率分别达 84 .4 2 %和 87.63%。用摇床分选一次后 ,Nb2 O5的品位可由0 .0 2 1%提高到 0 .0 69% ,回收率达 90 .4 8%。

The study of comprehensive recovery of valuable elements in the tailing in Weishan Ra re Earth Mine has been carried out according to the property of mine sampling . The result expre sses that using flotation method,reasonable reagants and operating conditions can obtain the effect which S content is more than 36% in sulphide concentrate and BaSO 4 content is more than93% in barite.Their recovery ratio are 84.46% and 87.63%.After one separating by table concentrator?,?the grade of Nb 2O 5 is increased from ?0.021% ?to 0.069%?,?and the recovery ratio is up to 90.48%.