Zinc orthotitanate powder and preparation method thereof
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, zinc chloride is volatile, and the preparation process is complicated, so as to facilitate industrial production. Large-scale production, simplified production process, high purity effect
Pending Publication Date: 2021-07-23
SUZHOU GINET NEW MATERIAL TECH CO LTD
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Problems solved by technology
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.
Method used
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Embodiment 1
[0062] Embodiment 1: This embodiment is the optimal embodiment.
[0063] Step 1. Mix 20 grams of zinc acetate dihydrate with 40 grams of deionized water, and continue to stir uniformly to obtain an aqueous solution of zinc acetate;
[0064] Step 2, adding glacial acetic acid to the zinc acetate aqueous solution, and continuing to stir evenly until the zinc acetate aqueous solution with a pH value of 5 is obtained;
[0065] Step 3, configuring an adhesion promoter PVA solution (solid content 8%), adding 5ml of the adhesion promoter to the zinc acetate aqueous solution with a pH value of 5 obtained in step (2), to obtain a zinc acetate mixed solution;
[0066] Step 4. Add 15.22ml of n-butyl titanate dropwise into the zinc acetate mixed solution at a rate of 5ml / min, and keep stirring until the reaction ends;
[0067] Step five, drying the reaction product obtained in step (four) at 150° C. for 3 hours to obtain a zinc orthotitanate precursor;
[0068] Step 6. Raise the zinc or...
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Abstract
The invention provides a zinc orthotitanate powder and a preparation method thereof, the zinc orthotitanate powder is prepared from n-butyl titanate and / or tetraisopropyl titanate and zinc acetate, the granularity Dv90 of the zinc orthotitanate powder is less than 5 microns, and the zinc orthotitanate powder is a spinel phase. The zinc orthotitanate powder disclosed by the invention is single in phase and high in purity; the raw materials used in the preparation method are wide in source, low in cost, non-toxic and harmless, industrial large-scale production is facilitated, meanwhile, the process steps of precursor washing, filtering and the like are avoided, the production process is simplified, the manufacturing cost is reduced, and the manufacturing period is shortened.
Description
technical field [0001] The invention relates to the technical field of inorganic non-metallic powder materials, in particular to a zinc orthotitanate powder and a preparation method thereof. Background technique [0002] Excessive ultraviolet radiation will cause photochemical reactions and cause a series of changes in human body functions, especially causing harm to the skin, eyes and immune system of the human body. In addition, excessive ultraviolet rays will accelerate the aging process of buildings, paintings, sculptures, rubber and plastic products, making them hard, brittle and shortening their service life. Therefore, it is particularly important to study UV shielding agents. [0003] The ultraviolet shielding agents widely used in the world can be divided into two categories: one is organic ultraviolet shielding agents, which are customarily called ultraviolet absorbers, which can absorb ultraviolet light, especially ultraviolet light from 290nm to 380nm, and perfo...
Claims
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IPC IPC(8): C01G23/00
CPCC01G23/003C01P2004/61C01P2004/51C01P2002/32C01P2006/80
Inventor 杜怿鑫李新宇李杰
Owner SUZHOU GINET NEW MATERIAL TECH CO LTD