回收某硫化矿尾矿中白钨的选矿试验研究  

Beneficiation of Scheelite Recovery from a Sulfide Ore Tailings

作　　者：邬海滨 李继福[1] 袁勤智 艾光华[1,2] 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]江西省矿业工程重点实验室,江西赣州341000

出　　处：《中国钨业》2017年第3期36-41,共6页China Tungsten Industry

基　　金：国家自然科学基金项目（51564014、51504103）

摘　　要：某硫化矿尾矿中含WO30.41 %，其中白钨矿含WO30.29 %，并含有少量黑钨矿。该尾矿粒度较细，矿物基本单体解离，为了综合回收利用其中的钨资源，不造成资源浪费，试验采用“预先脱硫—强磁选富集黑钨—白钨浮选”的工艺流程，综合回收其中的钨矿，白钨浮选流程采用碳酸钠作为调整剂、CMC和水玻璃作为抑制剂、硝酸铅作为活化剂、ZL和GYB作为组合捕收剂的药剂制度。试验结果表明，经过一粗三精二扫的白钨粗选流程和一粗五精三扫的加温精选流程，可以得到含WO3品位为62.37 %，回收率为66.67 %的白钨精矿，为该低品位含钨尾矿开发利用提供借鉴。A sulfurized ore tailings containing WO3 0.41 %, of which scheelite containing WO3 0.29 %, and contains a small amount of wolframite. To comprehensively recycle the tungsten resources, the experiment adopts ＂pre -desulfurization - strong magnetic separation enrichment black tungsten -white tungsten flotation” process. The flotation process uses sodium carbonate as the regulator, CMC and water glass as the inhibitor, lead nitrate as the activator, ZL and GYB as the collector system. The results show that tungsten concentrate with a grade of 62.37 % and a recovery rate of 66.67 % can be obtained by a rough selection process and a coarse and fine cleaning process.It provides a good reference for the development and utilization of low grade tungsten tailings.

关 键 词：硫化矿尾矿 白钨矿 组合捕收剂 综合回收 

分 类 号：TD926.4[矿业工程—选矿]