某铁尾矿再回收铁矿物试验研究  

Experimental Study on Reclaiming Iron Minerals from Iron Tailings

作　　者：袁致涛[1] 马玉新[1] 李庚辉[2] 李丽匣[1] 阎赞[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110000 [2]本溪钢铁(集团)有限责任公司南芬选矿厂,辽宁南芬117000

出　　处：《矿冶工程》2016年第4期37-40,44,共5页Mining and Metallurgical Engineering

基　　金：陕西省尾矿资源综合利用重点实验室开放基金(2014SKY-WK011)

摘　　要：对某TFe品位为18.57%的铁尾矿进行了再回收试验研究。通过预富集、弱磁选可获得铁品位66.09%、回收率26.08%的弱磁选精矿;对弱磁选尾矿进行强磁选-阴离子反浮选可获得铁品位54.29%、回收率37.29%的反浮选精矿。对反浮选产品进行分析可知,铁闪石无选择性分配是造成反浮选作业选别效率低的主要原因。Tests were carried out to beneliciate the red iron ore tailings with a TFe grade ol 18.57%. With the process ol pre-concentration and low intensity magnetic separation （ LIMS）,an iron concentrate grading 6 6 . 0 9 % TFe at recovery ol 26.08% was obtained. Wherealter, the process of high intensity magnetic separation （ HIMS） and anionic reverse flotation were employed to treat the LIMS tailings,resulting in the concentrate grading 54.29% TFe with recovery ol 37.29%. According to the investigation on reverse llotation products, the poor separation elliciency ol reverse llotation may be attributed to the non-selective distribution ol grunerite.

关 键 词：铁尾矿 预富集 弱磁选 强磁选 阴离子反浮选 

分 类 号：TD981[矿业工程—选矿]