A kind of preparation method of ammonium fluorotitanate and ammonium fluorotitanate

A technology of ammonium fluorotitanate and ammonium fluoride, which is applied in chemical instruments and methods, titanium compounds, inorganic chemistry, etc., can solve the problems of complex raw materials, complex preparation methods, and high cost, and achieves simple preparation methods and easy-to-obtain formula raw materials. , the effect of cost reduction

Active Publication Date: 2021-01-08
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the existing preparation methods of ammonium fluorotitanate, the raw materials used are usually more complicated, the cost is higher, and the preparation method is more complicated

Method used

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  • A kind of preparation method of ammonium fluorotitanate and ammonium fluorotitanate
  • A kind of preparation method of ammonium fluorotitanate and ammonium fluorotitanate

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preparation example Construction

[0019] The present invention proposes a kind of preparation method of ammonium fluorotitanate, and this preparation method comprises the following steps:

[0020] mixing titanates with an organic solvent to obtain a first solution;

[0021] mixing ammonium fluoride and water to obtain a second solution;

[0022] mixing the first solution and the second solution to obtain a mixed solution;

[0023] Pour the mixed solution into the reactor for reaction to obtain mixed precipitates;

[0024] The mixed precipitates are cooled, filtered, washed, and dried to obtain ammonium fluotitanate.

[0025] The preparation method of ammonium fluorotitanate of the present invention adopts the first solution mixed with titanate and organic solvent, the second solution mixed with ammonium fluoride and water as raw materials, wherein, titanate is titanium source, ammonium fluoride A source of ammonia and a source of fluorine, the two are used as reactants, the organic solvent is used as the re...

Embodiment 1

[0042] The ethanol solution of tetrabutyl titanate is used as the first solution, and the aqueous solution of ammonium fluoride is used as the second solution, wherein the mass fraction of tetrabutyl titanate in the first solution is 1%, and the ammonium fluoride in the second solution is The mass concentration is 0.25g / mL. When preparing the mixed solution, add 550-650μL of 0.25g / mL ammonium fluoride aqueous solution for every 6mL of 1% tetrabutyl titanate solution, then add 4mL of absolute ethanol, and transfer it to the PTFE liner with a capacity of 15mL In a solvothermal reactor, seal it, react at 140°C for 12 hours, take out the reaction product, cool it down to room temperature naturally, filter, wash the precipitate with absolute ethanol, and dry it in a drying oven to obtain Pure phase ammonium fluorotitanate powder.

[0043] It can be known from weighing calculation that the yield of ammonium fluorotitanate obtained in this embodiment is 61%.

[0044] The prepared pur...

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Abstract

The invention discloses a preparation method of ammonium fluotitanate and the ammonium fluotitanate. The preparation method comprises the steps of mixing titanic acid ester with an organic solvent soas to obtain a first solution, mixing ammonium fluoride with water so as to obtain a second solution, mixing the first solution with the second solution so as to obtain a mixed solution, pouring the mixed solution in a reactor, and performing a reaction so as to obtain mixed precipitation substances, and cooling the mixed precipitation substances, performing filtration, performing washing, and performing drying treatment so as to obtain the ammonium fluotitanate. Through the adoption of the technical scheme of the preparation method disclosed by the invention, the preparation method is simple,raw materials are simple and easy to obtain, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of preparation of inorganic substances, in particular to a method for preparing ammonium fluorotitanate and ammonium fluorotitanate. Background technique [0002] Ammonium fluorotitanate, also known as ammonium hexafluorotitanate, is generally used as a corrosion-resistant cleaning agent for ceramics and glass and for the manufacture of artificial gemstones; in addition, it can also be used to synthesize titanium oxide precursors with special shapes. Ammonium fluorotitanate powder is relatively stable at room temperature and insoluble in water. In the existing method for preparing ammonium fluorotitanate, the raw materials used are usually relatively complicated, the cost is high, and the preparation method is relatively complicated. Contents of the invention [0003] The main purpose of the present invention is to provide a method for preparing ammonium fluorotitanate, which aims to make the preparation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/00
CPCC01G23/002C01P2002/72C01P2004/03
Inventor 尤华丽何进胡国庆
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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