摘要
钨矿选别过程中,黑、白钨矿分别主要采用重选法和浮选法回收.但因为重选难以高效回收微细粒黑钨矿以及浮选过程中白钨矿难以与含钙矿物有效分离等原因,导致钨矿回收率低或品位不理想.因此,有必要对黑、白钨矿的表面特性进行深入研究.介绍了黑、白钨矿表面特性的研究现状,主要评述了黑、白钨矿表面键的断裂、表面化学组成、表面异向性、表面电性以及表面溶解组分对钨矿可浮性的影响.对未来钨矿表面特性的研究方向和研究方法进行了展望.
Gravity separation and flotation areadopted in processing wolframite and scheeliterespectively. The recovery rate and grade are not satisfactory because gravity separation cannot recover the fine grain of wol- framite efficiently and flotation is difficult to separate scheelite from calcium minerals. It is necessary to study on the surface properties of wolframite and scheelite in detail. This paper introduces the research status of wolframite and scheelite in surface features. Factors includingsurface key fracture, surface chemical composi- tion, surface anisotropy, surface electrical properties and surface dissolved components on tungsten floatability are expounded. The future research direction and method of the surface characteristics of tungsten are prospected.
出处
《有色金属科学与工程》
CAS
2014年第1期73-76,共4页
Nonferrous Metals Science and Engineering
基金
国家科技支撑计划资助项目(2012BAC11B07)
江西省教育厅科学研究资助项目(GJJ11482)
关键词
黑钨矿
白钨矿
表面特性
可浮性
wolframite
scheelite
surface characteristics
floatability
