Study on the Mineralogical Characteristics of Titano-magnetite of V-Ti Magnetite Ore in Panxi Region

The x-ray diffraction phase qualitative analysis,optical microscope,electron probe micro-analyzer,scanning electron microscope and linear regression analysis were employed for the mineral composition,chemical composition and the inner structural feature of the titano-magnetite of V-Ti magnetite ore in Panxi Region in this paper.The results indicated that the main mineral composition of the titano-magnetite was consisted of titano-magnetite（whose content was about 68%～90%）,ilmenite（approximate 8%～30%）,titanite（approximate 1%～5%） and the spinel（approximate 0.5%～1.5%）.The main chemical composition of the titano-magnetite was consisted of iron,titanium,vanadium,chromium and manganese,and with about 48%～63% of TFe,14%～30% of TiO₂,1.0%～1.5% of V₂O₅,0.4% of Cr₂O₃ and 0.5% of MnO contained in the titano-magnetite.In addition,there were small amounts of calcium,magnesium,aluminum and silicon,and some of which also contain traces of cobalt and nickel.The content of titanium and manganese has a significant linear negative correlation with iron content,and both of the vanadium and chromium have a closely linear positive correlation with iron.The results showed that the titano-magnetite was in forms of hedral-subhedral aggregates,whose internal structural feature was solid solution separation structure,and the dissolved mineral was mainly ilmenite with platylium,lath or lattice.The researches indicate that the titano-magnetite of the mining area has reached the content standards of industrial utilization,and could be used as industrial iron concentrate after sorting,which provide a basis for the formulation of the titano-magnetite beneficiation technology route.