Preparing method of nanoscale titanium dioxide
A titanium dioxide, nano-scale technology, applied in the direction of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., can solve the problems of many reagents, great influence on operators, low production capacity, etc., and achieve simple and convenient preparation methods with high purity and the effect of high yield
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Embodiment 1
[0029] A method for preparing nano-scale titanium dioxide, comprising the following steps:
[0030] S1: Take 10kg of titanium ore and place it in a high-pressure steam sterilizer at 121°C for 30 minutes to obtain a processed product;
[0031] S2: take the treated product obtained in S1, add hydrochloric acid equivalent to 4 times of the treated product, the concentration of hydrochloric acid is 6mol / L, stir for 1 hour, and obtain the treated liquid;
[0032] S3: Take the treatment liquid obtained in S2, filter it, take the filtrate and dry it, and obtain 8.56 kg of dry matter;
[0033] S4: Take the dry matter obtained in S3 and the steel ball in a weight ratio of 1:5, and add silicon dioxide at the same time, the weight ratio of the dry matter to silicon dioxide is 100:4, and place it in a high-energy ball mill for grinding for 18-24 hours to obtain nano-sized titanium dioxide.
Embodiment 2
[0035] S1: Take 10kg of titanium ore and place it in a high-pressure steam sterilizer at 121°C for 40 minutes to obtain a processed product;
[0036] S2: Take the treated product obtained in S1, add sodium chloride equivalent to 4.5 times of the treated product, the concentration of sodium chloride is 8mol / L, stir for 1.5h, and obtain the treated liquid;
[0037] S3: Take the treatment solution obtained in S2, filter it, take the filtrate and dry it, and obtain 8.23 kg of dry matter;
[0038] S4: Take the dry matter obtained in S3 and the steel ball at a weight ratio of 1:5, and add silicon dioxide at the same time, the weight ratio of the dry matter to silicon dioxide is 100:4.5, place it in a high-energy ball mill and grind for 21 hours to obtain nano-sized titanium dioxide.
Embodiment 3
[0040] A method for preparing nano-scale titanium dioxide, comprising the following steps:
[0041] S1: Take 10kg of titanium ore and place it in a high-pressure steam sterilizer at 121°C for 45 minutes to obtain a processed product;
[0042] S2: Take the treated product obtained in S1, add potassium chloride equivalent to 5 times of the treated product, the concentration of potassium chloride is 10mol / L, stir for 2 hours, and obtain the treated liquid;
[0043] S3: Take the treatment solution obtained in S2, filter it, take the filtrate and dry it, and obtain 8.23 kg of dry matter;
[0044] S4: Take the dry product obtained in S3 and the steel ball in a weight ratio of 1:5, and add silicon dioxide at the same time, the weight ratio of the dry product to silicon dioxide is 100:5, place it in a high-energy ball mill and grind for 24 hours to obtain nano-sized titanium dioxide.
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