攀西某钒钛磁铁矿选矿试验研究

Beneficiation of a Vanadium-titanium Magnetite in Panxi

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.