Method for coproducing sodium chloride by using micro barium sulphate prepared by barium chloride

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

Inactive Publication Date: 2009-11-18
王嘉兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 coproducing sodium chloride by using micro barium sulphate prepared by barium chloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment one: 500 kilograms of barium chloride (5) are dissolved in water and are injected into reactor (1) li with the mass ratio of pure matter 1: 0.38 after the tensio-active agent treatment of 1% and dissolving Stir evenly at low speed at the same time, and the number of revolutions is 120 / min to carry out chemical reaction to obtain the mixed liquid of barium sulfate and sodium chloride, centrifuge (2) filter to get filter cake precipitated barium sulfate and then wash, dry (3), pulverize (4 ), the packaging obtains 311.76 finely precipitated barium sulfate products, and the filtrate obtains industrial salt sodium chloride through vacuum distillation. Its chemical reaction equation is:

Embodiment 2

[0012] Embodiment two: 500 kilograms of barium chloride (5) are dissolved in water and are injected into reactor (1) li with the mass ratio 1: 0.98 of the mass ratio of pure substance after 3% tensio-active agent is processed respectively Stir evenly at low speed, and the rotation speed is 300 / min to carry out a chemical reaction to obtain a mixed liquid of barium sulfate and sodium chloride, centrifuge (2) filter to obtain a filter cake precipitated barium sulfate, then wash, dry (3), and pulverize (4) , packaged to obtain 560.1 kg of finely precipitated barium sulfate product, and the filtrate was distilled under reduced pressure to obtain industrial salt sodium chloride.

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Abstract

The invention discloses a method for coproducing sodium chloride by using micro barium sulphate prepared by barium chloride, which is technically characterized in that: reacting the barium chloride and sodium sulphate according to certain proportion to obtain micro barium sulphate and sodium chloride after filtration; filtering the micro barium sulphate and sodium chloride to obtain filter cake, washing, drying, grinding, and packaging into micro barium sulphate products; and distilling the filtrate under reduced pressure to obtain industrial salt sodium chloride products. The method is simple and concise, and particularly uses low-grade barium chloride and sodium sulphate to produce high-grade precipitated barium sulphate, the production technology and equipment are simple, the productivity is extremely high, and the profit is high.

Description

Technical field: [0001] The invention relates to the technical field of preparation of chemical fillers, in particular to a method for co-producing sodium chloride with fine barium sulfate prepared from barium 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 co-producing sodium chloride with fine barium sulfate prepared by barium chloride. This method is simple ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/46C01D3/04
Inventor 王嘉兴
Owner 王嘉兴
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