Preparation method of zinc orthotitanate powder
A technology of zinc orthotitanate and powder, which is applied in the direction of titanate, chemical instruments and methods, titanium compounds, etc., can solve the problems that are not conducive to industrial production, long diffusion path, poor overall uniformity, etc., and achieve the convenience of industrial large-scale The effect of production, simplification of production process and shortening of manufacturing cycle
Active Publication Date: 2021-09-03
SUZHOU GINET NEW MATERIAL TECH CO LTD
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Problems solved by technology
However, the high-temperature heat treatment process of the solid-phase calcination method exposes many disadvantages: such as long diffusion path, poor powder uniformity, and difficult control of grain size, etc. The solid-phase method requires a higher calcination temperature, which is not conducive to production and energy saving; Easy to agglomerate, poor overall uniformity, small specific surface area
The preparation method reacts a zinc source, a titanium source, and an oxygen-containing weak acid, wherein the zinc source is zinc chloride, which is volatile and highly toxic, and the preparation process is complicated and the preparation cycle is long, which is not conducive to industrial production.
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Embodiment 1
[0063] Embodiment 1: This embodiment is the optimal embodiment.
[0064] Step 1. Mix 50 grams of zinc acetate dihydrate, 40 grams of urea, and 150 grams of deionized water, and continue to stir evenly to obtain a transparent aqueous solution;
[0065] Step 2, adding 0.5 grams of triethanolamine dispersant to the transparent aqueous solution, and continuously and uniformly stirring to obtain a mixed solution of zinc acetate;
[0066] Step 3. Weigh 9.1006 g of anatase titanium dioxide with a particle size D50 of 0.33 μm and a D100 of 1.86 μm in proportion, add titanium dioxide to the zinc acetate mixed solution obtained in step 2, continue stirring and ultrasonic treatment for 30 minutes, A white slurry is obtained;
[0067] Step 4, the white slurry was hydrolyzed in an oil bath at 85°C for 420 minutes, the stirring speed was 450r / min, and a suspension was obtained after the reaction;
[0068] Step 5, drying the suspension at a temperature of 120° C. for 5 hours to obtain tita...
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Abstract
The invention provides a preparation method of zinc orthotitanate powder. In order to solve the problems of long period, complicated operation, low safety, complicated raw materials, high cost and the like of the preparation method of the zinc orthotitanate powder in the prior art, the invention provides a method for preparing the zinc orthotitanate powder by adopting wet chemical coating for the first time. According to the technical scheme, titanium dioxide particles with the surfaces coated with zinc hydroxide are calcined and ground to obtain the zinc orthotitanate powder. The raw materials used in the method are wide in source, simple, non-toxic and harmless, the method is short in preparation period and high in safety, and the prepared zinc orthotitanate powder is single in phase, high in purity and extremely suitable for large-scale industrial production.
Description
technical field [0001] The invention relates to the technical field of inorganic non-metallic powder materials, in particular to a preparation method of zinc orthotitanate powder. Background technique [0002] Zinc orthotitanate spinel is a widely used inorganic non-metallic material. It was mainly used as white pigment or paint at first. Areas such as UV shielding have important application potential. Currently, methods for preparing such spinels mainly include solid-phase method, sol-gel method, and liquid-phase deposition method. However, the high-temperature heat treatment process of the solid-phase calcination method exposes many disadvantages: such as long diffusion path, poor powder uniformity, and difficult control of grain size, etc. The solid-phase method requires a higher calcination temperature, which is not conducive to production and energy saving; It is easy to agglomerate, the overall uniformity is poor, and the specific surface area is small. The sol-gel ...
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IPC IPC(8): C01G23/00
CPCC01G23/003C01P2004/61C01P2002/72C01P2004/03C01P2002/85C01P2004/04C01P2002/84C01P2006/80Y02E60/10
Inventor 杜怿鑫李杰胡林政
Owner SUZHOU GINET NEW MATERIAL TECH CO LTD