Method for producing potassium titanate in large scale by utilizing ore-grade titanium-containing compound
A technology of titanium compound and potassium titanate, applied in the direction of titanium compound, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of complicated production process, equipment corrosion loss, high raw material cost, etc., to reduce alkaline corrosion loss, The effect of accelerating the synthesis reaction and reducing the cost of raw materials
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Embodiment 1
[0062] Crystalline rutile raw ore powder and potassium carbonate were TiO 2 and K 2 In terms of O, according to the molar ratio of TiO 2 : K 2 O=5.5:1, the above two raw materials are fully mixed, and an appropriate amount of water is added during the mixing process, and the amount of water added is based on the convenience of subsequent molding; then the above mixture is pressurized into a three-dimensional channel structure with a height of 8cm. A cylindrical shape with a diameter of 10cm, the direction of the channel is parallel to the height direction, the diameter of the channel is 8mm, and the distance between the holes is 1cm; the above-mentioned cylindrical blank is heated to 1150°C in a microwave shuttle kiln, kept for 2 hours, and then cooled to 800°C with the furnace. After ℃, air-cool to room temperature; grind the calcined product to 150 mesh with a Raymond mill, and the obtained product is powdered potassium titanate. X-ray diffraction analysis (such as figur...
Embodiment 2
[0064]Amorphous titanium slag and potassium carbonate were TiO 2 and K 2 In terms of O, according to the molar ratio of TiO 2 : K 2 O=5:1, the above two raw materials are fully mixed, and an appropriate amount of water is added during the mixing process, and the amount of water added is based on the convenience of subsequent molding; then the above mixture is pressurized into a three-dimensional channel structure with a height of 8cm. A cylindrical shape with a diameter of 10cm, the direction of the channel is parallel to the height direction, the diameter of the channel is 8mm, and the distance between the holes is 1cm; the above-mentioned cylindrical blank is heated to 1050°C in a microwave shuttle kiln, kept for 2 hours, and then cooled to 800°C with the furnace. After ℃, air-cool to room temperature; grind the calcined product to 150 mesh with a Raymond mill, and the obtained product is powdered potassium titanate. X-ray diffraction analysis (such as image 3 Shown) sh...
Embodiment 3
[0066] The crystalline anatase raw ore powder and potassium carbonate were TiO 2 and K 2 In terms of O, according to the molar ratio of TiO 2 : K 2 O=4:1, fully mix the above two raw materials, add an appropriate amount of water during the mixing process, and the amount of water added is based on the convenience of subsequent molding; then use the mold to press the above mixture into a 10cm×10cm with a three-dimensional channel structure ×8cm cuboid, the channel direction is parallel to the height direction, the channel diameter is 1cm, and the hole-to-hole spacing is 1cm; the above-mentioned cuboid blank is heated to 1050°C in a microwave-assisted electric heating shuttle kiln, kept for 2 hours, and then cooled with the furnace After reaching 800°C, air-cool to room temperature; grind the calcined product to 100 mesh with a Raymond mill, then wash with water, stir, filter, and finally heat-treat at 600°C for 5 hours, and the obtained product is powdered potassium titanate. ...
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