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Simple method for preparing acicular zirconium hydrogen phosphate

A zirconium hydrogen phosphate, acicular technology, applied in the field of high-efficiency preparation of acicular zirconium hydrogen phosphate (Zr2), can solve the problems of strong corrosion, threats to workers and the environment, inability to synthesize acicular zirconium phosphate, etc., and achieve high economic and social Value, the effect of promoting the formation of crystals

Inactive Publication Date: 2016-08-17
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the commonly used method for synthesizing zirconium hydrogen phosphate is to dissolve soluble zirconium salt in water, and then use HF acid as a synthetic auxiliary agent, the amount of which is 1 to 13 times the molar amount of zirconium salt (Liu Minghua, Water Treatment Chemicals: Chemistry Industry Press, 2010: 572), but due to the strong corrosiveness of HF acid, it poses a potential threat to workers and the environment
In addition, the applicant has not yet found any relevant reports on the preparation of needle-shaped zirconium hydrogen phosphate by a simple method
[0003] In order to overcome the shortcomings that zirconium hydrogen phosphate uses HF acid as a synthetic aid and cannot synthesize needle-shaped zirconium phosphate, the present invention provides a needle-shaped phosphoric acid that is efficient, simple, safe, reliable, easy to operate, low in cost, and high in purity. A method for preparing hydrogen zirconium, the principle of which is: use linear octylphenol polyvinyl ammonium nitrate, polyvinyl pyrrolidone, and hexadecyl ethyl morpholine ammonium ethosulfate as crystal form control agents to generate needle-like Zirconium hydrogen phosphate crystals, and then filtered, washed and dried to produce high-purity needle-shaped zirconium hydrogen phosphate

Method used

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  • Simple method for preparing acicular zirconium hydrogen phosphate

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Embodiment 1

[0010] Concentration is that the phosphoric acid solution of 80 wt%, the ammoniacal liquor of 30 wt% and distilled water are formulated into solution in the ratio of 4: 3: 5 by volume; Then zirconium oxychloride, urea are added in the solution, and wherein The molar ratio of zirconium, phosphoric acid and urea is: 1:2:6; (2) Add linear octylphenol polyvinyl ammonium nitrate, polyvinylpyrrolidone, cetyl ethyl morpholine ethyl ammonium sulfate to the solution, and Control the addition of linear octylphenol polyvinyl ammonium nitrate, polyvinylpyrrolidone, cetyl ethyl morpholine ammonium ethosulfate to be 0.1%, 0.05%, 0.1% of the solution quality respectively; (3) the solution is heated to 98°C, and continuously stirred with a stirrer for 6 hours; after the stirring, the solution was naturally cooled to room temperature, then stood still and aged for 5 hours, then filtered and separated, and the product was washed 3 times with distilled water, and then dried at 110°C for 3 Hours,...

Embodiment 2

[0012] Concentration is that the phosphoric acid solution of 80 wt%, the ammoniacal liquor of 30 wt% and distilled water are formulated into solution in the ratio of 4: 3: 5 by volume; Then zirconium oxychloride, urea are added in the solution, and wherein The molar ratio of zirconium, phosphoric acid and urea is: 1:2:8; (2) Add linear octylphenol polyvinyl ammonium nitrate, polyvinyl pyrrolidone, hexadecyl ethyl morpholine ethyl ammonium sulfate to the solution, and Control the addition of linear octylphenol polyvinyl ammonium nitrate, polyvinylpyrrolidone, cetyl ethyl morpholine ammonium ethosulfate to be 0.1%, 0.05%, 0.1% of the solution quality respectively; (3) the solution is heated to 98 °C, and continuously stirred with a stirrer for 8 hours; after the stirring, the solution was naturally cooled to room temperature, then stood still and aged for 5 hours, then filtered and separated, and the product was washed 3 times with distilled water, and then dried at 110 °C for 3 ...

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Abstract

The invention relates to a simple method for efficiently preparing acicular zirconium hydrogen phosphate. The method is characterized by comprising the following steps: (1) preparing a solution from a phosphoric acid solution, ammonia water and distilled water in a volume ratio of 4:3:5; adding zirconium oxychloride and urea into the solution; (2) adding linear octyl phenol polyethylene ammonium nitrate, polyvinylpyrrolidone and hexadecylethylmorpholinylethyl ammonium sulfate; (3) heating the solution to 98 DEG C, and continuously stirring with a stirrer for 3-6 hours; and after finishing stirring, naturally cooling the solution to room temperature, standing, aging for 5 hours, filtering, separating, washing and drying to prepare the complete-crystal acicular zirconium hydrogen phosphate.

Description

technical field [0001] What the invention provides is a kind of high-efficiency preparation acicular zirconium hydrogen phosphate (Zr(HPO 4 ) 2 ), which belongs to the technical field of inorganic material preparation. Background technique [0002] Zirconium hydrogen phosphate (Zr(HPO 4 ) 2 ) is widely used in industrial production, has strong acid resistance and certain alkali resistance, has a large specific surface area and surface charge, and has good ion exchange properties. Compared with granular (powder) zirconium hydrogen phosphate, needle-shaped zirconium hydrogen phosphate has a larger specific surface area, better ion exchange and proton exchange capabilities, and can greatly improve its own catalytic efficiency or its attached catalyst. The efficiency, and can effectively remove radioactive nuclear waste and harmful substances in sewage treatment. At present, the commonly used method for synthesizing zirconium hydrogen phosphate is to dissolve soluble zircon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/37
CPCC01B25/372C01P2004/10
Inventor 白佳海高杰盖超群李晓月刘洋
Owner SHANDONG UNIV OF TECH