Preparation method of high titanium slag TiO2 photocatalysed superfine fiber
A technology of ultra-fine fiber and high titanium slag, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of small catalytic area, complicated preparation, high cost, etc., and achieve the goal of increasing the contact area Effect
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Embodiment 1
[0016] 1) TiO 2 The mass fraction is 30-95% of the vanadium-titanium iron ore smelting blast furnace titanium-containing waste slag pulverized into particles with a particle size of 5 μm, and then adding metallurgical waste of 1.5% by weight of titanium slag to obtain a mixture, the metallurgical waste Contains Si0 2 and MnO 2 , metallurgical waste slag basicity R (Ca0 / Si0 2 ) is 1.2;
[0017] 2) Put the mixture into the melting furnace, and inject oxygen into the melting furnace, and raise the temperature of the melting furnace under the condition that the oxygen partial pressure in the furnace is 10.13Pa to melt the mixture. After the mixture is melted, continue to maintain the oxygen in the furnace. Partial pressure for 7 minutes;
[0018] 3) Gradually lower the furnace temperature at 0.5°C / min, and at the same time, separate the cooled and solidified impurity scum from the enriched molten titanium dioxide by blowing off air to obtain molten high-titanium slag;
[0019...
Embodiment 2
[0022] 1) TiO 2 The high-titanium blast furnace water-quenched slag with a mass fraction of 30-95% is crushed into particles with a particle size of 8 μm, and then metallurgical waste with a weight of 2% of the titanium slag is added to obtain a mixture, and the metallurgical waste contains Si0 2 and A1 2 0 3 , metallurgical waste slag basicity R (Ca0 / Si0 2 ) is 2;
[0023] 2) Put the mixed material into the melting furnace, and blow oxygen into the melting furnace, and raise the temperature of the melting furnace under the condition that the oxygen partial pressure in the furnace is 101.3 to melt the mixed material. After the mixed material is melted, continue to maintain the oxygen content in the furnace Press for 5 minutes;
[0024] 3) Gradually lower the furnace temperature at 2°C / min, and at the same time, separate the cooled and solidified impurity scum from the enriched molten titanium dioxide by blowing off air to obtain molten high-titanium slag;
[0025] 4) The ...
Embodiment 3
[0028] 1) TiO 2 The mass fraction of 30-95% of smelting sponge titanium high-titanium slag is crushed into particles with a particle size of 12 μm, and then metallurgical waste with a weight of 2.5% of titanium slag is added to obtain a mixture, and the metallurgical waste contains Si0 2 and MgO, metallurgical waste slag basicity R (Ca0 / Si0 2 ) is 1.8;
[0029] 2) Put the mixed material into the melting furnace, and blow oxygen into the melting furnace, and raise the temperature of the melting furnace under the condition that the oxygen partial pressure in the furnace is 1013Pa to melt the mixed material. After the mixed material is melted, continue to maintain the oxygen content in the furnace Press for 6 minutes;
[0030] 3) Then gradually lower the furnace temperature at 3°C / min, and at the same time, separate the cooled and solidified impurity scum from the enriched molten titanium dioxide by blowing off air to obtain molten high-titanium slag;
[0031] 4) The molten high...
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