四川某低品位难选铜镍硫化矿石选矿试验研究  

Experimental study on the beneficiation of a low-grade refractory copper-nickel sulfide ore in Sichuan

作　　者：雷力[1,2] 曹欣 徐建伟 赵华伦 王恒峰[1,2] 李玺 Lei Li;Cao Xin;Xu Jianwei;Zhao Hualun;Wang Hengfeng;Li Xi(Sichuan Metallurgical Geological Exploration Institute;Sichuan West Metallurgical Testing Technology Co.,Ltd.)

机构地区：[1]四川省冶金地质勘查院 [2]四川西冶检测科技有限公司

出　　处：《黄金》2023年第1期53-57,共5页Gold

摘　　要：四川某低品位难选铜镍硫化矿石含铜0.22%、镍0.47%,矿石中含铜、镍矿物工艺粒度细微,铜镍极难实现有效分离,故采取直接浮选方法获得铜镍混合精矿,并详细考察了磨矿细度、抑制剂、调整剂等影响因素。结果表明:在磨矿细度-74μm占70%,经一次粗选、两次扫选、三次精选浮选工艺流程,可获得产率5.88%、铜品位3.31%、镍品位5.92%、铜回收率86.60%、镍回收率73.84%的铜镍混合精矿,选矿试验指标较好。A low-grade refractory copper-nickel sulfide ore in Sichuan contains 0.22%copper and 0.47%nickel.The ore contains copper and nickel minerals in fine particles,and it is very difficult to effectively separate copper and nickel.Therefore,direct flotation is adopted to obtain copper-nickel mixed concentrate.The study thoroughly investigated the influence factors such as the grinding fineness,the inhibitor,and the modifier.The results show that when the grinding fineness-74μm accounts for 70%,through the flotation process of once roughing,twice scavenging and three times refining,a copper-nickel mixed concentrate with a yield of 5.88%,a copper grade of 3.31%,a nickel grade of 5.92%,a copper recovery of 86.60%and a nickel recovery of 73.84%can be obtained.The test indexes of copper-nickel beneficiation are good.

关 键 词：铜镍硫化矿 粗磨 低品位 混合精矿 高冰镍 浮选 

分 类 号：TD952[矿业工程—选矿]