Abstract : the development of main mineral processing technologies of wolframite and scheelite are presented in the paper 文摘:分别介绍了黑、白钨选矿工艺主要技术进展情况。
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Is a hard , brittle , corrosion - resistant , gray to white metallic element extracted from wolframite , scheelite , and other minerals , having the highest melting point and lowest vapor pressure of any metal 颜色呈灰色或棕黑色，硬度高，延性强，熔点极高，常温下不受空气侵蚀主要用途是制造灯丝和高速切削合金钢，各种钨电极,也用于光学仪器，化学仪器方面。
