Leaching Titaniferous Magnetite Concentrate by Alkaline Aqueous Solution

Abstract Leaching titaniferous magnetite concentrate with alkali solution of high concentration under temperature and pressure was utilized to improve the grade iron in TiO 2 titanium tailings. The use contained 12.67% 54.01% Fe. thermodynamics possible reactions kinetics leaching process were analyzed. It found that decomposing FeTiO 3 NaOH aqueous could be carried out spontaneously reaction rate mainly controlled by internal diffusion. effects water usage, concentration, time, on procedure inspected, products characterized X-ray diffraction, scanning electron microscope, energy dispersive spectroscopy, respectively. After magnetic separation, concentrate, Fe purity 65.98% recovery 82.46%, tailings, 32.09% 80.79%, obtained,