某富镁贫铜镍矿石选矿新工艺研究  

Study on New Beneficiation Process of Mg-rich Copper-Nickel Lean Ore

作　　者：赵开乐[1,2] 王昌良[2] 邓伟[2] 顾帼华[1] 饶系英[2] 

机构地区：[1]中南大学资源加工与生物工程学院 [2]中国地质科学院矿产综合利用研究所

出　　处：《金属矿山》2013年第12期73-77,共5页Metal Mine

摘　　要：某富镁贫铜镍矿石因铜镍品位低、滑石和蛇纹石含量高、部分镍赋存在可浮性差的磁黄铁矿中而难选。现场采用脱泥—铜镍混浮工艺处理该矿石,不仅铜镍未分离,而且脱泥造成铜镍回收率低下。为高效利用该矿石,研制了新型活化剂WT-02和新型抑制剂WY-003,提出了不需脱泥的铜镍混浮—铜镍分离新工艺,并通过实验室试验和扩大连选试验证明了两种新药剂的有效性和新工艺的合理性。在此基础上进行工业试验,结果表明,与原工艺相比,新工艺在实现铜镍分离的同时,可使镍和铜的回收率分别提高17.89和17.24个百分点。按此推算,现场每年可多回收镍金属120.53 t、铜金属54.31 t,新增产值1 422.02万元。A Mg-rich copper-nickel lean ore with low grade of copper and nickel,high content of talc and serpentine, and nickel bearing in poor floatable pyrrhotite,is a refractory mineral. The process of desliming and Cu-Ni bulk flotation is adopted on-site,which did not separate from copper and nickel,and lowered the low recovery of copper and nickel due to desliming. In order to realize the efficient utilization of the ore,new activator WT-02 and new inhibitor WY-003 are developed and a new process of copper-nickel bulk flotation and Cu-Ni separation without desliming is proposed. Both two agents and the new process are verified to be effective and reasonable through laboratory tests and pilot tests. Based on these,industrial tests are carried out. The results show that compared with the original process,the new one can realize high effective separation of copper and nickel,and increase Cu and Ni recovery of 17. 89% and 17. 24% respectively. Additionally, 120. 53 t of nickel and 54. 31 t of copper metal will be recovered each year,with the yearly output value increased by 14 220 200 yuan.

关 键 词：富镁贫铜镍矿石 新型活化剂WT-02 新型抑制剂WY-003 铜镍混浮 铜镍分离 

分 类 号：TD953[矿业工程—选矿]