利用选矿方法降低某尼尔森重选精矿的MgO、SiO2含量  

Reduction of magnesium and silicon content in Knelson gravity concentrate by mineral processing method

作　　者：苏晓晖 罗春华 蒲银春 宋建文 赵毕文 方湘天 SU Xiao-hui;LUO Chun-hua;PU Yin-chun;SONG Jian-wen;ZHAO Bi-wen;FANG Xiang-tian(State Key Laboratory of Nickel and Cobalt Resources Comprehensive Utilization,Jinchang 737100,Gansu,China;Jinchuan Nickel&Cobalt Research and Engineering Institute,Jinchang 737100,Gansu,China)

机构地区：[1]镍钴资源综合利用国家重点实验室,甘肃金昌737100 [2]金川镍钴研究设计院,甘肃金昌737100

出　　处：《矿冶》2021年第1期21-24,37,共5页Mining And Metallurgy

摘　　要：利用重选工艺、浮选工艺、重选—浮选工艺等选矿方法对某尼尔森重选精矿进行了降低镁硅含量的试验研究,通过研究分析,确定浮选工艺是比较经济合理的尼尔森精矿降镁硅方案。浮选得到的精矿镍、铜品位分别为4.79%、2.08%,回收率为87.72%、88.78%,金、铂品位分别为110.77、618.07g/t,回收率分别为99.04%、98.82%,浮选精矿中MgO、SiO2含量分别为4.65%、8.12%。An experimental study on the reduction of magnesium-silicon content in Knelson gravity concentrate was carried out by means of gravity separation process,flotation process and gravity separation-flotation process.Through the research and analysis,it is determined that the flotation process is a more economical and reasonable scheme for reducing magnesium-silicon in Knelson concentrate.The nickel and copper grades in the flotation concentrate are 4.79%and 2.08%,respectively.The recoveries of nickel and copper are 87.72%and 88.78%.The gold and platinum grades in the flotation concentrate are110.77 g/t and 618.07 g/t,and the recoveries are 99.04%and 98.82%.The contents of MgO and SiO2 in flotation concentrate are 4.65%and 8.12%.

关 键 词：尼尔森重选精矿 浮选 氧化镁含量 二氧化硅含量 

分 类 号：TD922[矿业工程—选矿] TD923