蛇纹石矿还原焙烧与磁选富集镍铁研究  

Study on Enrichment of Ferronickel from Serpentine by Reduction Roasting and Magnetic Separation

作　　者：牛亚慧[1,2] 都兴红[2] 张珂 郭健柄 

机构地区：[1]江苏省沙钢钢铁研究院,江苏张家港215625 [2]东北大学材料与冶金学院,沈阳110819

出　　处：《有色金属（冶炼部分）》2014年第3期1-4,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点基础研究发展计划项目(2007CB613503);攀枝花市科学技术局项目(2011CY-G-9-3)

摘　　要：以四川某蛇纹石为原料,考察添加剂对还原与磁选富集镍铁的影响。结果表明,加入硫酸盐和碳酸盐各15%在1 100℃还原120min,然后在磁场强度79.62kA/m条件下磁选,精矿中镍和铁品位分别为5.99%和53.84%,镍和铁的回收率分别达到87.59%和72.09%。The effects of additive on ferronickel enrichment from serpentine by reduction roasting and mag- netic separation were investigated. The results show that nickel and iron grade in magnetic separation con- centrate is 5.99% and 53.84% respectively with recovery of 87.59%and 72.09% respectively under the optimum conditions including dosage of sulfate and carbonate both of 15%, reduction temperature of 1 100 ℃, reduction time of 120 rain, and magnetic separation with magnetic field intensity of 79.62 kA/m.

关 键 词：蛇纹石 还原焙烧 磁选 镍铁 添加剂 

分 类 号：TD98[矿业工程—选矿] TF815[冶金工程—有色金属冶金]