攀西某钒钛磁铁矿选矿试验研究  

Beneficiation of a Vanadium-titanium Magnetite in Panxi

作　　者：李金林 李韦韦 祝勇涛 吴雪红 Li Jinlin;Li Weiwei;Zhu Yongtao;Wu Xuehong(Design and Research Institute of Mining Co.,Ltd.,Pangang Group,State Key Laboratory of Vanadium and Titanium Re-sources Comprehensive Utilization,Panzhihua 617063,Sichuan,China)

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

出　　处：《钢铁钒钛》2020年第6期66-73,共8页Iron Steel Vanadium Titanium

摘　　要：以攀西某低品位钒钛磁铁矿为研究对象,针对其中的钛磁铁矿与钛铁矿开展选矿试验研究。通过"预先抛尾+两段阶磨阶选"的工艺回收其中的钛磁铁矿,最终可获得产率19.78%,TFe品位55.34%,TFe回收率51.27%的铁精矿。选铁尾矿中含有大量钛铁矿,通过两段除铁强磁流程可将TiO2品位由9.38%提升至21.58%;采用浮选流程进一步提升TiO2品位,通过"浮硫—脱泥—一粗三精"的流程,最终可获得相对于选铁尾矿产率9.53%,TiO2品位47.45%,TiO2回收率47.87%的合格钛精矿。Taking a vanadium-titanium magnetite in Panxi as the research object,a beneficiation test was carried out for the titanium magnetite and ilmenite.The titanium magnetite was recovered by the process of pre-throwing tailings followed by two-stage grinding and magnetic separation,and the iron concentrate with a yield of 19.78%,a TFe grade of 55.34% and a TFe recovery rate of 51.27% can be obtained finally.The tailings of iron beneficiation contain a large amount of ilmenite,and the TiO2 grade can be increased from9.38% to 21.58% by two stages of iron removal and strong magnetic processes.The flotation process was used to further improve the TiO2 grade. Through the process of floating sulfur-desliming-one rough and three concentration,qualified titanium concentrate with a yield of 9.53%,a TiO2 grade of 47.45%,and a TiO2 recovery rate of 47.87% can be obtained.

关 键 词：钒钛磁铁矿 阶磨阶选 钛铁矿 钛磁铁矿 

分 类 号：TF041[冶金工程—冶金物理化学] TD92[矿业工程—选矿]