某低品位钒钛磁铁矿石选矿试验  

Beneficiation Experiments of a Low Grade Vanadium-titanium Magnetite Ore

作　　者：王伟之[1,2] 李明彦[3] 韩东芸[2,4] 

机构地区：[1]河北联合大学矿业工程学院 [2]河北省矿业开发与安全技术实验室 [3]河北钢铁集团矿业有限公司 [4]河北联合大学化学工程学院

出　　处：《金属矿山》2013年第4期74-76,85,共4页Metal Mine

基　　金：河北省科技支撑计划重点项目(编号:12236726D)

摘　　要：为了给某低品位钒钛磁铁矿石的开发利用提供技术依据,对该矿石进行了综合回收铁和钛的选矿试验。结果表明:原矿经两段阶段磨矿、阶段弱磁选,可获得铁品位为64.42%、铁回收率为55.42%的铁精矿;选铁尾矿经螺旋溜槽粗选—摇床1次精选,中矿开路情况下可获得TiO2品位为33.88%、对重选作业和对原矿的TiO2回收率分别为32.83%和27.78%的钛精矿。In order to provide the technical basis for the development and utilization of a low-grade vanadium-titanium magnetite ore, beneficiation tests on comprehensive recovery of iron and titanium are made. The results show that iron con- centrate with Fe grade of 64. 42% and recovery of 55.42% is obtained by adopting the process of two stages grinding-stage low intensity magnetic separation from the raw ore. Tailings are treated by the open-circuit process of rough concentration with spiral chute-one cleaning with table. Then, titanium concentrate with TiO2 grade of 33.88%, and the recovery of 32. 83% by gravity separation and the recovery TiO2 of 27.78% of the raw ore are obtained. The product can be sold as raw materials of protecting the furnace.

关 键 词：钒钛磁铁矿石 阶段磨矿 阶段弱磁选 螺旋溜槽-摇床重选 铁钛综合回收 

分 类 号：TD983[矿业工程—选矿]