加拿大某钒钛磁铁矿石选矿试验研究  

Experimental Study on the Beneficiation of a Vanadium-Titanium Magnetite in Canada

作　　者：李韦韦 Li Weiwei(Design and Research Institute of Mining Co.,Ltd.,Pangang Group;State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization)

机构地区：[1]攀钢集团矿业有限公司设计研究院,四川攀枝花617063 [2]钒钛资源综合利用国家重点实验室

出　　处：《现代矿业》2020年第7期111-115,共5页Modern Mining

摘　　要：加拿大某钒钛磁铁矿石Fe品位为42.56%,TiO2品位为10.65%,V2O5品位为0.33%,Cr2O3品位为1.22%,矿石中的金属矿物主要为钛磁铁矿和钛铁矿,绝大部分有用元素赋存在钛磁铁矿中。为确定该矿石的开发利用工艺,进行了选矿试验。结果表明采用两阶段磨矿阶段弱磁选工艺,可获得Fe、TiO2、V2O5、Cr2O3品位分别为52.76%、10.21%、0.42%、1.64%,回收率分别为87.14%、67.38%、89.45%、93.91%的铁精矿;弱磁选铁尾矿采用强磁选+重选选钛流程,可获得TiO2品位为47.03%的钛精矿,相对弱磁选铁尾矿的回收率为7.34%。A vanadium-titanium magnetite ore in Canada with TFe grade of 42.56%,TiO2 grade of 10.65%,V2O5 grade of 0.33%,and Cr2O3 grade of 1.22%.The metal minerals in the ore are mainly titanium magnetite and ilmenite,which are mostly useful elements are stored in titanium magnetite.In order to determine the development and utilization process of the ore,a beneficiation test was conducted.The results show that take the two-stage grinding and stage low inteisity magnetic separation process can obtain an iron concentrate with TFe,TiO2,V2O5,Cr2O3 grades of 52.76%,10.21%,0.42%,1.64%,and recovery rates of 87.14%,67.38%,89.45%,93.91%respectively.The low intensity magnetic separation iron tailings adopt the high intensity magnetic separation+gravity separation titanium separation process can obtain a titanium concentrate with TiO2 grade of 47.03%,and the recovery rate of the relatively low intensity magnetic separation iron tailings is 7.34%.

关 键 词：钛铁矿 钛磁铁矿 高铁高铬型钒钛磁铁矿石 

分 类 号：TD95[矿业工程—选矿] TD92