Selective Precipitation and Concentrating of Perovskite Crystals from Titanium-Bearing Slag Melt in Supergravity Field
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VANADIUM-TITANIUM magnetite is a kind of iron, titanium, and vanadium multiple-element symbiotic composite ore resource in massive reserves, especially in the Panxi region of China.[1,2] So far, vanadium-titanium magnetite is mainly adopted by blast furnace ironmaking processes for refining and extracting the iron, whereas use of the vanadium and titanium resources is limited. Generally speaking, the mass fraction of TiO2 in the raw ore is 9.0 to 12.0 wt pct, and about 53 pct of TiO2 migrates to the iron ore concentrate after mineral processing. Then the concentrate further transforms into the vanadium-bearing hot metal and the titanium-bearing blast furnace slag containing 20.0 to 25.0 wt pct of TiO2 during the blast furnace ironmaking process.[3,4] Nevertheless, the titanium-bearing blast furnace slag can hardly resort to the traditional separating technique resulting from the dispersed distribution of the titanium component in various mineral phases, fine grains (
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