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Method for preparing co-production sodium chloride of precipitated barium sulfate

A technology for precipitating barium sulfate and sodium chloride, which is applied in the direction of alkali metal chloride, calcium/strontium/barium sulfate, etc., can solve the problems of complex production equipment, large amount of material transportation, low production yield, etc., and achieve high profit , The method is simple and clear, and the effect of high yield

Inactive Publication Date: 2010-02-10
王嘉兴
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

However, the production yield of this method is low, and the large amount of material transportation leads to complex and huge production equipment.

Method used

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  • Method for preparing co-production sodium chloride of precipitated barium sulfate

Examples

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Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment one: 500 kilograms of barium chloride (5) is dissolved in water and the sodium sulfate (6) that dissolves is good with the mass ratio of pure matter 1: 0.38 injects in the reactor (1) li and evenly stirs simultaneously, carries out the obtaining of chemical reaction The mixed liquid of barium sulfate and sodium chloride is centrifuged (2) to get filter cake precipitated barium sulfate, then washed, dried (3), crushed (4), packaged to obtain 311.76 barium sulfate products, and the filtrate is distilled under reduced pressure to obtain industrial salt Sodium chloride. Its chemical reaction equation is:

Embodiment 2

[0011] Embodiment two: 500 kilograms of barium chloride (5) are dissolved in water and the sodium sulfate (6) that dissolves is injected into reactor (1) li with the mass ratio of pure matter 1: 0.98 and stir evenly simultaneously, carry out the obtaining of chemical reaction The mixed liquid of barium sulfate and sodium chloride is centrifuged (2) and filtered to obtain filter cake precipitated barium sulfate and then washed, dried (3), pulverized (4), packed to obtain 560.1 kg of barium sulfate product, and the filtrate is distilled under reduced pressure to obtain industrial salt sodium chloride.

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Abstract

The invention discloses a method for preparing co-production sodium chloride of precipitated barium sulfate, which is characterized in that barium chloride and sodium sulfate react according to a certain proportion and are filtered; precipitated barium sulfate and sodium chloride are obtained; a filtering cake obtained by filtration is washed, dried, pulverized and packed into a precipitated barium sulfate product; filtering liquor is decompressed and distilled, and an industrial salt sodium chloride product is obtained. The method is convenient and quick; especially, low-grade barium chlorideand sodium sulfate are used for producing high-grade precipitated barium sulfate, and thereby the method has the advantages of simple production technology and equipment as well as high production rate and profit.

Description

Technical field: [0001] The invention relates to the technical field of filler preparation, in particular to a method for preparing precipitated barium sulfate and co-producing sodium chloride. technical background: [0002] There are many ways to produce precipitated barium sulfate, mainly barium ore production. However, the production yield of this method is low, and a large amount of material transportation leads to complex and huge production equipment. The method of preparing precipitated barium sulfate with barium chloride and sodium sulfate is simple and clear, especially the production of high-grade precipitated barium sulfate with low-grade barium chloride and sodium sulfate, the production process and equipment are simple, the yield is huge, and the profit is very high. Invention content: [0003] The invention provides a method for preparing precipitated barium sulfate to co-produce sodium chloride. This method is simple and clear, especially for producing high...

Claims

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Application Information

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IPC IPC(8): C01F11/46C01D3/04
Inventor 王嘉兴
Owner 王嘉兴
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