Abstract:The process mineralogy of the iron tailings from a vanadium-titanium magnetite in Shaanxi was studied in detail by means of X-ray fluorescence spectrum analysis, X-ray diffraction analysis, optical microscope observation, multi-element chemical analysis and scanning electron microscope. The results showed that the grain size of tailing were mainly concentrated in the +75μm range, which mainly composed of Si, Al, Fe, Ca, Mg, Na and other elements. The main minerals in the tailing are gangue minerals, such as plagioclase, hornblende and pyroxene, and a small amount of metallic minerals, such as ilmenite. TiO2 was mainly distributed in the range of -75μm, while Fe2O3, Al2O3 and SiO2 were mainly distributed in the range of +75μm. With the decrease of grain size, the content of TiO2 and Fe2O3 increased first and then decreased, while the contents of Al2O3 and SiO2 decreased first and then increased. According to the characteristics of process mineralogy, the low dissociation degree of metallic minerals and weak magnetic separation may be the main reasons for the low recovery rate of titanium and iron.