高品位铁精粉制备工艺研究  

Technology for Preparation of High-grade Iron Concentrate

作　　者：李锐 刘杰[2] 王珏 宛彦鑫 夏一航 LI Rui;LIU Jie;WANG Jue;WAN Yan-xin;XIA Yi-hang(Shenyang Longji Magnet Co Ltd,Fushun 113122,Liaoning,China;Northeastern University,Shenyang 110819,Liaoning,China)

机构地区：[1]沈阳隆基电磁科技股份有限公司,辽宁抚顺113122 [2]东北大学,辽宁沈阳110819

出　　处：《矿冶工程》2018年第5期51-53,57,共4页Mining and Metallurgical Engineering

摘　　要：以美国某磁铁矿为原料,分别采用磁悬浮精选和反浮选工艺对磁选精矿进行了提铁降硅研究。结果表明,采用两种工艺都可以将TFe品位提高到70%以上、Si O_2含量降到1.5%以下,达到高品位铁精粉的要求。但磁悬浮精选工艺可以得到较高的产率和TFe回收率,并且运行成本低、无污染物排放,是更高效环保的选矿方法。Magnetic levitation anti reverse flotation techniques were introduced for extracting iron anti reducing silicon in the concentrate from previous magnetic separation process with the magnetite from the United States as raw material. It is shown that concentrates obtained using either process could have the TFe grade increased to over 70% anti SiO2 content reduced to below 1.5%, meeting the standard for high grade iron powder. Comparatively, magnetic levitation separation can lead to the higher yield anti TFe recovery, anti is also more effective due to its lower operating cost anti eeo-friendly without any pollutant discharged.

关 键 词：磁铁矿 磁悬浮精选 反浮选 铁精粉 提铁降硅 

分 类 号：TD951[矿业工程—选矿]