难选赤褐铁矿焙烧-磁选试验研究  

EXPERIMENTAL STUDY ON MAGNETIC ROASTING-SEPARATION OF REFRACTORY HEMATITE LIMONITE

作　　者：张汉泉[1] 任亚峰[1] 管俊芳[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《中国矿业》2006年第5期44-48,共5页China Mining Magazine

摘　　要：对某含铁品位为45%、磁性率(FeO/TFe)为2.7%的难选赤褐铁矿矿石进行了选矿试验研究,考查了该矿石的矿物工艺学和磨矿特性,重点研究了强磁选、还原焙烧-磁选分选情况,确定还原焙烧-磁选可以获得较好的选别指标为:精矿铁品位达60%以上,产率达85%以上,铁回收率90%以上,尾矿铁品位下降到15%以下。In this paper, test of mineral processing were finished on the refractory hematite limonite of Shanxi with iron content about 45%, rate of magnetism （FeO/TFe） about 2. 7%. Grindability and tech- nique of mineralogy of this iron ore were described. The major study were put attention on efficiency of magnetic separation at high intensity and reducing roasting-magnetic separation. Tests of reducing roasting-magnetic separation could attained good results as： concentrate iron grade be about to 60%, productivity above 85%, recovery of iron above 90%, iron grade of tails under 15%.

关 键 词：难选赤褐铁矿 矿物工艺学 强磁选 磁化焙烧 

分 类 号：TD951[矿业工程—选矿]