铜渣中铁组分的选择性析出与分离  

Selective Precipitation and Separation of Fe Components from Copper Smelting Slags

作　　者：曹洪杨[1] 付念新[1] 王慈公[1] 张力[1] 夏风申 隋智通[1] 冯乃祥[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]葫芦岛有色金属集团公司,辽宁葫芦岛125003

出　　处：《矿产综合利用》2009年第2期8-11,共4页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金重点资助项目(50234040)

摘　　要：通过改变铜冶炼熔渣的化学性质,使分散在渣中多种矿物相里的铁组分富集到磁铁矿相;然后促进磁铁矿相选择性地长大与粗化;最后通过磁选法分离出磁铁矿相。结果表明:改性渣中磁铁矿相的粒度达到40μm以上。经磨矿、磁选分离,铁精矿中TFe的品位达到54%左右、回收率达到90%以上。By modification of Molten copper smelting slag, the dispersed Fe components in various mineral phases were selectively enriched into the magnetite phase, and the magnetite phase could be selectively precipitated and grew. Thus, the magnetic phase can be separated by the magnetic separation method. It was found that the average grain size of magnetite phase in modified slags changed from 20 to 40μm, the grade can reach 54% and the recovery rate can reach about 90% in concentrate produced by magnetic separation.

关 键 词：铜渣 改性 磁铁矿相 磁选 铁精矿 

分 类 号：TF811[冶金工程—有色金属冶金] TF534.2