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- W3172825877 abstract "Abstract Leaching titaniferous magnetite concentrate with alkali solution of high concentration under high temperature and high pressure was utilized to improve the grade of iron in iron concentrate and the grade of TiO 2 in titanium tailings. The titaniferous magnetite concentrate in use contained 12.67% TiO 2 and 54.01% Fe. The thermodynamics of the possible reactions and the kinetics of leaching process were analyzed. It was found that decomposing FeTiO 3 with NaOH aqueous solution could be carried out spontaneously and the reaction rate was mainly controlled by internal diffusion. The effects of water usage, alkali concentration, reaction time, and temperature on the leaching procedure were inspected, and the products were characterized by X-ray diffraction, scanning electron microscope, and energy dispersive spectroscopy, respectively. After NaOH leaching and magnetic separation, the concentrate, with Fe purity of 65.98% and Fe recovery of 82.46%, and the tailings, with TiO 2 purity of 32.09% and TiO 2 recovery of 80.79%, were obtained, respectively." @default.
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- W3172825877 date "2021-06-16" @default.
- W3172825877 modified "2023-10-15" @default.
- W3172825877 title "Leaching Titaniferous Magnetite Concentrate by Alkaline Aqueous Solution" @default.
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- W3172825877 doi "https://doi.org/10.1007/s42461-021-00387-x" @default.
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