Nano titanium oxide and mechanical force chemical reaction preparation method for its composite powder
A technology of nano-titanium dioxide and composite powder, which is applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of harsh synthesis conditions, high production costs, and increased processing technology, so as to speed up the chemical reaction and shorten the chemical reaction time , the effect of increasing the specific surface area
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Example Embodiment
[0025] Example 1:
[0026] In this embodiment, the reactant is butyl titanate and the ligand is oxalic acid. The process flow is shown in Figure 1, with the following steps in sequence
[0027] 1. Ingredients
[0028] The molar ratio of butyl titanate to oxalic acid is 1:3
[0029] 2. Mixing
[0030] Mix butyl titanate and oxalic acid in the proper proportions until they are uniform;
[0031] 3. Preparation of precursors by mechanochemical reaction method
[0032] The uniformly mixed butyl titanate and oxalic acid are ball-milled at room temperature and normal pressure, so that they react to produce precursors under the action of mechanical shearing force and impact force generated during the ball-milling process. The speed of the ball mill is controlled at 300 rpm , 50 minutes of ball milling can completely chemically react butyl titanate and oxalic acid to generate precursors;
[0033] 4. Precursor removal
[0034] The precursors are removed by washing and filtering, the deterge...
Example Embodiment
[0040] Example 2:
[0041] In this embodiment, the reactant is titanium sulfate and the ligand is sodium carbonate. The process flow is shown in Figure 1, with the following steps in sequence
[0042] 1. Ingredients
[0043] The molar ratio of titanium sulfate to sodium carbonate is 1:4
[0044] 2. Mixing
[0045] Mix the appropriate proportions of titanium sulfate and sodium carbonate until uniform;
[0046] 3. Preparation of precursors by mechanochemical reaction method
[0047] The uniformly mixed titanium sulfate and sodium carbonate are ball-milled at room temperature and normal pressure, so that they react to produce precursors under the action of mechanical shearing force and impact force generated during the ball-milling process. The speed of the ball mill is 320 rpm, and the ball milling In 40 minutes, titanium sulfate and sodium carbonate can completely chemically react to form precursors;
[0048] 4. Precursor removal
[0049] The precursors are removed by washing and f...
Example Embodiment
[0055] Example 3:
[0056] In this embodiment, the reactant is a complex of titanium sulfate and zinc sulfate, and the ligand is oxalic acid. The process flow is shown in Figure 1, with the following steps in sequence
[0057] 1. Ingredients
[0058] The molar ratio of the composite of titanium sulfate and zinc sulfate to oxalic acid is 1:3, and the molar ratio of titanium sulfate and zinc sulfate in the composite is 10:1;
[0059] 2. Mixing
[0060] Mix the compound of titanium sulfate and zinc sulfate in proportion with oxalic acid until uniform;
[0061] 3. Preparation of precursors by mechanochemical reaction method
[0062] The well-mixed reaction system is ball milled at room temperature and normal pressure, so that it reacts to produce precursors under the action of mechanical shearing force and impact force generated during the ball milling process. The speed of the ball mill is 250 rpm, and the ball milling is 60 minutes. It can make the chemical reaction of titanium sulf...
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