单一磁选法制备超纯铁精矿的试验研究  

Experimental Study on Using Single Magnetic Separation Method for Preparation of Ultra-pure Iron Concentrate

作　　者：牛福生 李卓林 张晋霞 刘亚 

机构地区：[1]华北理工大学矿业工程学院,河北唐山063009 [2]河北省矿业开发与安全技术重点试验室,河北唐山063009

出　　处：《矿产综合利用》2017年第2期27-30,共4页Multipurpose Utilization of Mineral Resources

基　　金：河北省自然科学基金资助项目(E2015209117);河北省科技厅资助项目(15213812)

摘　　要：为了简化超纯铁精矿的制备工艺,提高企业经济效益,针对河北某地磁铁矿进行了超纯铁精矿制备的试验研究。研究表明,原矿全铁品位为35.59%,主要以磁铁矿形式存在,分布率为91.07%,均匀地分布在各个粒级中。经过阶段磨矿-弱磁选以及磁选柱两次精选流程,可获得全铁品位为71.79%,回收率为77.99%的超纯铁精矿。In order to simplify the preparation process of ultra-pure iron ore and improve the economic benefits of enterprise, experimental study on preparation of ultra-pure magnetite iron ore was carried on the magnetite in Hebei. The results shows that total grade of the iron ore is 35.59% mainly in the form of ferrum and the distribution ratio is 91.07% ,evenly distributing in each particle size. The main gangue minerals are quartz,chlorite and so on. After stage grinding-low,intensity magnetic separation and two selection processes,it can get the iron concentrate, whose grade is 71.79% ,recovery rate is 77.99%.

关 键 词：磁铁矿 磁选 超纯铁精矿 

分 类 号：TD924[矿业工程—选矿]