某难选低品位铜镍硫化矿选矿工艺研究  

Research on the Beneficiation Technology of a Refractory Low-grade Copper-nickel Sulfide Ore

作　　者：周贺鹏[1] 邹丽萍[1] 雷梅芬[1] 王虎[1] 艾光华[1] 

机构地区：[1]江西理工大学,江西赣州市341000

出　　处：《矿业研究与开发》2013年第5期44-46,69,共4页Mining Research and Development

基　　金：江西省青年科学基金项目(GJJ13371);江西省自然科学基金项目(20122BAB216021);江西省科技支撑计划项目(20121BBG70005);江西理工大学校级科研项目(jxxj12005);江西理工大学质量工程建设项目(XZG-12-08-76)

摘　　要：某难选低品位铜镍矿石含铜0.29%、含镍0.48%,为充分回收矿石中的铜镍矿物,以硫酸铜作活化剂,(乙基黄药+丁铵黑药)作混合浮选捕收剂,CMC作脉石矿物抑制剂,石灰作镍矿物抑制剂,LP-01作铜镍分离铜捕收剂,采用"铜镍混浮-铜镍分离"工艺流程对其进行了分选。闭路试验可获得含铜25.38%、含镍0.73%,铜回收率75.27%的铜精矿和含镍5.86%、含铜0.31%,镍回收率80.08%的镍精矿。试验指标良好,铜、镍矿物都得到了较好的选矿回收与浮选分离。A tow-grade copper-nickel ore contains Cu 0.29% and Ni 0.48%. In order to fully recover the valuable miner- als in the ore, a flow sheet of copper-nickel bulk flotation and copper-nickel separation with CuSO4 as activator, ethyl xanthate and ammonium aerofloat butyl as the collectors for bulk flotation, CMC as the depressant for gangue, CaO as the depressant for nickel mineral, and LP--O1 as the collec- tor for copper mineral was adopted. As was shown from the results of closed-circuit tests, a Cu concentrate with Cu grade of 25. 380/00, Ni grade of 0.73% and Cu recovery of 75.27%, and a Ni concentrate with Ni grade of 5.86%, Cu grade of 0.31% and Ni recovery of 80.08% were obtained. The indexes of the experiment were good, in which copper and nickel minerals were well recovered and separated.

关 键 词：铜镍硫化矿 混合浮选 铜镍分离 低品位矿 

分 类 号：TD923[矿业工程—选矿]