Method for producing artificial rutile by utilizing titanium-containing blast furnace slag
A technology of artificial rutile and blast furnace slag, applied in the direction of titanium dioxide, process efficiency improvement, titanium oxide/hydroxide, etc., can solve the problems of small-scale utilization, poor economic benefits, and difficult separation, and achieve simple equipment and less impurities in the product , The effect of short process flow
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Embodiment 1
[0025] With titanium-containing blast furnace slag (its main component is calculated by weight percentage: SiO 2 content of 24.26%, CaO content of 26.86%, Al 2 o 3 content of 13.04%, MgO content of 6.93%, TiO 2 Content is 22.58%), high-titanium electric furnace slag (its main component is calculated by weight percentage: SiO 2 content of 5.39%, CaO content of 4.00%, Al 2 o 3 content of 19.35%, MgO content of 12.52%, TiO 2 content of 50.98%) and silicon dioxide in a ratio of 8:1:2.2 by weight, put them into a platinum crucible, heat up to 1500°C in a silicon-molybdenum rod high-temperature furnace, keep the temperature in an air atmosphere for 1 hour, and then quickly Lower the temperature to 1260°C and keep it warm for 5 hours, take out the sample and water-cool it, and finally separate the artificial rutile crystals from the residue by flotation beneficiation to obtain rod-shaped artificial rutile, and the remaining residue is used to produce cement.
[0026] The above-...
Embodiment 2
[0030] With titanium-containing blast furnace slag (its main component is calculated by weight percentage: SiO 2 content of 24.26%, CaO content of 26.86%, Al 2 o 3 content of 13.04%, MgO content of 6.93%, TiO 2 Content is 22.58%), high-titanium electric furnace slag (its main component is calculated by weight percentage: SiO 2 content of 5.39%, CaO content of 4.00%, Al 2 o 3 content of 19.35%, MgO content of 12.52%, TiO 2 content of 50.98%) and silicon dioxide in a weight ratio of 9:1:2.8, put them into a platinum crucible, heat up to 1500°C in a silicon-molybdenum rod high-temperature furnace, keep the temperature constant for 1h in an air atmosphere, and then quickly cool down to 1200°C Insulate at ℃ for 2 hours, take out the sample and water-cool, and finally separate the artificial rutile crystals from the residue by gravity separation to obtain rod-shaped artificial rutile, and the remaining residue is used to produce cement.
Embodiment 3
[0032] With titanium-containing blast furnace slag (its main component is calculated by weight percentage: SiO 2 content of 24.26%, CaO content of 26.86%, Al 2 o 3 content of 13.04%, MgO content of 6.93%, TiO 2 Content is 22.58%), high-titanium electric furnace slag (its main component is calculated by weight percentage: SiO 2 content of 5.39%, CaO content of 4.00%, Al 2 o3 content of 19.35%, MgO content of 12.52%, and TiO2 content of 50.98%) and silicon dioxide are fully mixed in a weight ratio of 8:2:2.5, put into a platinum crucible, and heat up to 1500°C in a silicon-molybdenum rod high-temperature furnace , in an oxygen atmosphere at a constant temperature for 0.5h, then first lower the temperature to 1300°C, and then cool down to 1100°C at a cooling rate of 200°C / h, then cool to room temperature with the furnace, and finally separate the artificial rutile crystals from the residue by flotation beneficiation , to obtain rod-shaped artificial rutile, and the remaining ...
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