Production process of tetrahydrated zirconium sulfate

A zirconium sulfate tetrahydrate, production process technology, applied in the direction of zirconium sulfate, etc., can solve the complex process, difficult to produce pure zirconium sulfate tetrahydrate and other problems

Inactive Publication Date: 2005-05-18
柳云珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional zirconium sulfate tetrahydrate production process usually uses zircon sand as raw material, and is composed of sintering, water washing, sulfuric acid acidification, crystalliza

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] ①Place zirconium oxychloride in an acid-resistant container that can be pumped. ② Add pure water into the container according to the weight ratio of water:zirconium oxychloride=0.55, and stir evenly. 3. add the concentrated sulfuric acid of sulfuric acid content more than 98% in the container by sulfuric acid: the weight ratio of zirconium oxychloride=0.606, start the gas pumping equipment to extract the hydrogen chloride gas that reaction generates simultaneously, and absorb with water, generate hydrochloric acid. ④ drying and pulverizing the reaction product to produce zirconium sulfate tetrahydrate.

Embodiment 2

[0011] ① Put basic zirconium sulfate with a zirconium content of about 35% based on zirconium dioxide in an acid-resistant container. ② Add pure water into the container according to the weight ratio of water: basic zirconium sulfate = 0.5, and stir evenly. 3. Add concentrated sulfuric acid with a sulfuric acid content of more than 98% in the container according to the weight ratio of sulfuric acid: basic zirconium sulfate=0.44, and stir evenly to make it fully react. ④ drying and pulverizing the reaction product to produce zirconium sulfate tetrahydrate.

Embodiment 3

[0013] ①Place zirconium hydroxide with a zirconium content of about 35% based on zirconium dioxide in an acid-resistant container. ② Add pure water into the container according to the weight ratio of water: zirconium hydroxide = 0.5, and stir evenly. 3. add the concentrated sulfuric acid of sulfuric acid content more than 98% in the container by sulfuric acid: zirconium hydroxide=0.61 weight ratio, 4. add pure water in the container by water: zirconium hydroxide=0.55 weight ratio, and stir, make crystallization Fully dissolve. ⑤ Filter the solution to remove insoluble impurities. 6. the filtered solution is placed in an acid-resistant corrosion container, then under stirring, add the concentrated sulfuric acid with a sulfuric acid content of more than 98% in the container by the volume ratio of solution: sulfuric acid=2, so that zirconium sulfate is fully crystallized. ⑦ After the temperature of the crystallization solution is lowered to room temperature, put it into a centr...

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PUM

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Abstract

The invention provides a production process for producing zirconium sulfate tetrahydrate by using zirconium salts or alkali compounds and sulfuric acid as raw materials. Specifically, zirconium salts or alkali compounds are mixed with water and sulfuric acid in a certain proportion, and after full stirring and grinding, they are completely reacted to produce zirconium sulfate tetrahydrate. The above-mentioned process adopts the method of mixing and reacting zirconium salts or alkali compounds directly with sulfuric acid, which has the characteristics of simple equipment, short process flow, high yield, and no discharge of three wastes. It can be used to produce high-purity zirconium sulfate tetrahydrate and produce zirconium Treatment of zirconium compounds recovered from serial chemical production processes.

Description

technical field [0001] The invention provides a production process for producing zirconium sulfate tetrahydrate by using zirconium salts or alkali compounds and sulfuric acid as raw materials, and belongs to the technical field of inorganic chemical industry. Background technique [0002] The traditional zirconium sulfate tetrahydrate production process usually uses zircon sand as raw material, and is composed of sintering, water washing, sulfuric acid acidification, crystallization and other processes. The process is complicated, and since zircon sand usually contains about 2% iron, Above method is difficult to produce the higher zirconium sulfate tetrahydrate of purity. Contents of the invention [0003] The purpose of the present invention is to provide an economical and effective method for producing zirconium sulfate tetrahydrate, which can shorten the process flow, reduce energy consumption, easy to handle...

Claims

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Application Information

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IPC IPC(8): C01G25/06
Inventor 柳云珍宋世楼贾欲雪
Owner 柳云珍
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