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Preparation method of nano zirconia precursor

A nano-zirconia, precursor technology, applied in the field of materials to achieve the effects of no waste discharge, safe operation and high product cost

Inactive Publication Date: 2014-02-05
烟台宏泰达化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of hydrolysis of alkoxy zirconium (zirconium alkoxide) is mainly used to prepare nano-sized zirconium dioxide, but the research and development of alkoxy zirconium (zirconium alkoxide) production technology is less, and the product cost is high

Method used

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  • Preparation method of nano zirconia precursor

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Experimental program
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Effect test

Embodiment 1

[0021] 3. Alkoxylation, add zirconium tetrachloride and n-butanol into the reaction kettle according to the stoichiometric amount, add the solvent petroleum ether and stir until the zirconium chloride dissolves, feed ammonia gas until the system is alkaline, and the pH is 8- 10. Filter and wash the filter cake, collect the filtrate and washing liquid, which is tetra-n-butoxy zirconium solution, and the filter cake is ammonium chloride;

[0022] 4. Refining, mix the filtrate with the washing liquid, add solid decolorizing agent activated carbon, stir and heat to 80°C, keep warm for 30 minutes, filter out the decolorizing agent, distill the solution until the content of tetra-n-butoxy zirconium is ≥ 80%, and obtain the finished product after fine filtration .

[0023] Above-mentioned embodiment 1 is with n-butanol as alkoxy group donor, and the product obtained is tetra-n-butoxy zirconium; It can also be raw material that methanol, ethanol or propanol, the product obtained are t...

Embodiment 2

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Abstract

The invention discloses a preparation method of a nano zirconia precursor. The preparation method is characterized in that: in the presence of ammonia, in an organic solvent, reacting zirconium tetrachloride with an alkoxy donor to obtain a tetra-alkoxy zirconium solution, and refining by decolouring, distillation,filtration and the like to obtain finished tetra-alkoxy zirconium; and thus obtaining nano zirconia by hydrolysis of the tetra-alkoxy zirconium. The preparation method is reasonable in process, safe in operation and free of waste emissions, and meets the environment friendly requirements.

Description

Technical field: [0001] The invention relates to the field of material technology, in particular to a method for preparing a nano-zirconia precursor, which is mainly used in high-tech fields such as electronic information aerospace and atomic energy. Background technique: [0002] Zirconium and its compounds are essential materials in high-tech fields such as electronic information, aerospace, and atomic energy. Zirconium dioxide prepared by physical methods is difficult to reach the nanoscale (10-100 nanometers); nanoscale zirconia is used for the production of electronic screens, Indispensable raw materials for materials such as inorganic thin films and precision ceramics, which are widely used in high-tech fields such as aerospace, atomic energy, and electronic information; thin films made of nano-sized zirconia are used in anti-glare and anti-radiation of electronic touch screens and various displays , anti-static, etc., has an irreplaceable role. At present, the meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/00C01G25/02
Inventor 宋华西曲宏甫赵大江张志峰牛韶杰
Owner 烟台宏泰达化工有限责任公司
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