Process for preparing high-purity zirconium oxychloride

A technology of high-purity zirconium oxychloride and crude zirconium oxychloride, which is applied in inorganic chemistry, zirconium compounds, chemical instruments and methods, etc. Volatile and water-soluble, the effect of reducing pollution

Active Publication Date: 2011-05-18
JIANGXI KINGAN HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the presence of alcohol in the process leads to poor working environment and high consumption of organic reagents

Method used

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  • Process for preparing high-purity zirconium oxychloride
  • Process for preparing high-purity zirconium oxychloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In the first step, pump 800 liters of industrial hydrochloric acid (Fe2O3≤10ppm) 10.5N into the high-level tank of industrial acid, and pump 5000 liters of pure water (conductivity≤20us / m) into the high-level tank, which is produced during the production of industrial zirconium oxychloride. The crude zirconium oxychloride solution is pumped into the high-level tank, and the acidity, zirconium content and impurity indicators are tested. The acidity of the crude zirconium oxychloride solution is required to be 4.5N, and the zirconium content is required to be 105g / L, and 1600L is pumped into the extraction tank of the extraction section. For crude zirconium oxychloride solution, pump 800L of pure water into the organic regeneration section; in the second step, mix 3500 liters of extraction agent N503 with 4500 liters of sulfonated kerosene and put them into the extraction tank. The third step is to turn on the stirring, turn on the flow meter at the same time, adjust the f...

Embodiment 2

[0025] In the first step, pump 800 liters of industrial hydrochloric acid (Fe2O3≤10ppm) 10N into the high-level tank of industrial acid, and pump 5000 liters of pure water (conductivity≤20us / m) into the high-level tank. The industrial zirconium oxychloride produced in the production process The crude zirconium oxychloride solution is pumped into the high-level barrel, and the acidity, zirconium content and impurity indicators are tested. The acidity of the crude zirconium oxychloride solution is required to be 4.6N, and the zirconium content is required to be 100g / L, and 1500L crude oil is pumped into the extraction tank of the extraction section. For the zirconium oxychloride solution, 700L of pure water is pumped into the organic regeneration section; in the second step, 3300 liters of extraction agent N503 and 4700 liters of sulfonated kerosene are mixed and put into the extraction tank. The third step is to turn on the stirring, and at the same time turn on the flow meter, ...

Embodiment 3

[0027]In the first step, pump 800 liters of industrial hydrochloric acid (Fe2O3≤10ppm) 11N into the high-level tank of industrial acid, and pump 5000 liters of pure water (conductivity≤20us / m) into the high-level tank. The industrial zirconium oxychloride produced in the production process The crude zirconium oxychloride solution is pumped into the high-level barrel, and the acidity, zirconium content and impurity indicators are tested. The acidity of the crude zirconium oxychloride solution is required to be 4.7N, and the zirconium content is required to be 110g / L, and 1400L crude oil is pumped into the extraction tank of the extraction section. For zirconium oxychloride solution, pump 800L of pure water into the organic regeneration section; in the second step, mix 3000 liters of extraction agent N503 with 5000 liters of sulfonated kerosene and put them into the extraction tank. The third step is to turn on the stirring, and turn on the flow meter at the same time, adjust the...

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Abstract

The invention discloses a process for preparing high-purity zirconium oxychloride, which comprises the following steps: pumping crude zirconium oxychloride solution into a high-level barrel for later use, and pumping purified water into an organic regenerative section of an extraction tank; evenly stirring N, N-di (1-methyl heptyl) acetamide and sulfonated kerosene in a volume ratio of 1:1-9, andquantitatively pumping the mixture into the extraction tank and pumping the excess into the circular organic high-level barrel; opening a discharge valve of the extraction tank to discharge the circular organic and organic regenerative wastewater and the extracted crude zirconium oxychloride solution, testing the discharged solution, extracting the solution through multiple stages, and discharging the extracted crude zirconium oxychloride solution from the front end of the extraction tank; concentrating and crystallizing the solution; and putting the crystallized material into a suction filter tank, rinsing the crystallized material, then drying the rinsed material by a centrifugal machine, and packing the dried material. The process has the advantages of shortening the process flow, avoiding the introduction of alcohol reagent in an extraction system, improving the stability of the extraction system, reducing the volatility and water solubility of an extracting agent, reducing the consumption of organic reagent, improving the working environment, reducing the treatment difficulty of wastewater, and saving the production cost.

Description

technical field [0001] The invention relates to a process for preparing high-purity zirconium oxychloride, in particular to a method for preparing high-purity zirconium oxychloride through an alkali fusion-N503 extraction and separation joint process. Background technique [0002] The third crystallization method commonly used in the zirconium industry to prepare high-purity zirconium oxychloride, this method is based on the secondary crystallized zirconium oxychloride and then concentrated and crystallized, resulting in a low primary yield of the product, while increasing raw materials and auxiliary consumption of materials. High-purity zirconium oxychloride is widely used as an important chemical and metallurgical raw material, especially in the zirconium gemstone industry and special ceramics industry. At present, the industrial production process of high-purity zirconium oxychloride is as follows: alkali fusion → water Turn→acidification→water-soluble→concentration→pick...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G25/00
Inventor 罗方承邱才华孙小龙谌美玲
Owner JIANGXI KINGAN HI TECH
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