Production process of zincium selenious acid

A zinc selenite and production method technology, applied in chemical instruments and methods, zinc compounds, selenium/tellurium compounds, etc., can solve the problems of low utilization rate of raw material zinc, small production capacity of a single set of equipment, high production cost, etc., and achieve production The effect of low cost, large equipment capacity and high utilization rate

Inactive Publication Date: 2008-05-07
FIRST RARE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main disadvantages of the above two common production processes are: high production cost, relatively complicated equipment involved in the production process, small capacity of a single set of equipment, low utilization rate of raw material zinc, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Weigh 600 g of selenium dioxide and add it to 2 L of water to dissolve. After the dissolution is complete, add 430 g of zinc oxide and stir. After the reaction is completed, it is washed, dried and pulverized to produce zinc selenite product.

Embodiment 2

[0017] Weigh 500 g of selenium dioxide and add it to 1.5 L of water to dissolve. After the dissolution is complete, add 400 g of zinc oxide and stir. After the reaction is completed, it is washed, dried and pulverized to produce zinc selenite product.

Embodiment 3

[0019] Weigh 700 g of selenium dioxide and add it to 2.5 L of water to dissolve. After the dissolution is complete, add 500 g of zinc oxide and stir. After the reaction is completed, it is washed, dried and pulverized to produce zinc selenite product.

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PUM

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Abstract

The invention discloses a zinc selenite production method, which comprises the following steps: step one, 500 to 700 g of selenium dioxide is weighed, added into 1.5 to 2.5 L of water, and stirred to lead the selenium dioxide to be completely dissolved in the water; step two, the selenium dioxide water solution obtained in step one is added with 400 to 500 g of zinc oxide, and is stirred to be completely dissolved; step three, the deposited matter obtained in step two is cleaned, filtered, dried and crushed, and then the zinc selenite product is produced.

Description

technical field [0001] The invention relates to a production method of zinc selenite. technical background [0002] The molecular formula of zinc selenite is ZnSeO3, and its molecular weight is 192.35; it is an important chemical raw material, mainly used in the glass industry; zinc selenite is mainly used as a decolorizer, color complement agent and mold release agent for various types of glass. [0003] At present, the main production techniques of zinc selenite at home and abroad include zinc carbonate method and zinc chloride. [0004] The main disadvantages of the above two common production processes are: high production cost, relatively complicated equipment involved in the production process, small production capacity of a single set of equipment, and low utilization rate of raw material zinc. Contents of the invention [0005] The purpose of the present invention is to overcome the defect existing in the prior art, and provide a kind of high-efficiency, low-cost ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/00C01G9/00
Inventor 朱世会朱世明刘留朱刘
Owner FIRST RARE MATERIALS CO LTD
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