中文摘要：

浮选药剂是浮选分离各种矿物的关键。钨矿浮选的难点之一就是黑、白钨共生。为了充分回收钨矿物，需要寻找能同时浮选白钨矿与黑钨矿的有效捕收剂。本课题研究利用水杨羟肟酸作为捕收剂、硝酸铅作活化剂、硅酸钠作抑制剂对钨矿进行粗选，得到较好的分选效果。在加温精选中，通过添加硫化钠与硅酸钠组合药剂，可以得到WO3；品位为70．16％的钨精矿，钨的回收率达67．24％。

英文摘要：

The flotation reagents are of apivotal factor in the separation of various minerals in flotation. The flotation of wolfram is difficult due to the intergrowth of wolframite and scheelite. For the sufficient recovery of wolfram, the effective collecting reagents which can do floatation both of wolframite and scheelite are needed to be developed. In this disquisition, the flotation of wolfram mineral is tried with taking salicyl hydroximic acid as the collector, Pb （NO3）2 as the activator and sodium silicate as the depressant, in which better results of concentration are gotten. In the further fine concentration process of a raised temperature, 70.16% of the specific grade of wolfram concentration （WO3） and 67.24% of the rate of recovery is obtained by adding combination reagents of Na2S and Na2SiO3·9H2O.