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Production device and method of potassium perchlorate

A technology of potassium perchlorate and production equipment, applied in perchloric acid, perchlorate, electrolysis process and other directions, can solve problems such as waste of acid and alkali, achieve the effects of preventing harmful solid waste, easy quality and increasing crystallization efficiency

Inactive Publication Date: 2017-02-08
汝城县三鑫电化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the normal design, the above three processes are completely independent, and the acid and alkali are frequently changed during the circulation of materials and intermediates in the process, so each individual process is a net addition of acid or net addition of alkali, which causes a very large The waste of acid and alkali

Method used

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  • Production device and method of potassium perchlorate
  • Production device and method of potassium perchlorate
  • Production device and method of potassium perchlorate

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Effect test

Embodiment 1

[0036] Such as Figure 1-Figure 4 The production equipment of a kind of potassium perchlorate shown comprises circulation electrolyzer 18, and circulation electrolyzer 18 communicates with the first reactor 19, and the first reactor 19 communicates with the bottom of the second reactor 21 by the 3rd circulation pump 20, the second The upper part of the reactor 21 communicates with the first reactor 19 ; the top of the second reactor 21 communicates with the extraction and cooling device 22 .

[0037] The temperature control is realized by the induced draft fan and the frequency converter 222, instead of the traditional coil water cooling system, the water is evaporated by liquid heat dissipation to obtain a higher concentration of electrolyte, and the circulating cooling water is canceled at the same time. The concentrated and cooled crystals at the bottom of the first reactor pass through the bottom valve to remove the system, and return to the crystallization system for purifi...

Embodiment 2

[0050] Such as Figure 4 A kind of production method of potassium perchlorate shown, comprises the steps:

[0051] Step 1, sodium chlorate solution is added into the circulating electrolyzer 18 and relies on the hydrogen produced by electrolysis, and the electrolysis is automatically circulated. The first reactor 19 and the second reactor 21 are circulated and communicated, and the electrolytic solution is concentrated by the air extraction cooling device 22; the potassium chlorate solid is directly put into The first reactor 19 is mixed with the electrolyte;

[0052] Step 2, the electrolytic solution in the first reactor 19 enters potassium perchlorate double decomposition tank 25, forms potassium perchlorate crystallization, and the solution circulation that contains potassium perchlorate crystallization enters grinding device 27, smashes recrystallization through potassium perchlorate crystallization, potassium perchlorate double decomposition tank 25 The number of circula...

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Abstract

The invention relates to a production device and method of potassium perchlorate. The device comprises a cyclic electrolytic cell. The cyclic electrolytic cell is communicated with a first reactor, the first reactor is communicated with the bottom of a second reactor through a third circulating pump, the upper part of the second reactor is communicated with the first reactor and the top of the second reactor is communicated with an air exhaust cooling device. An air exhaust cooling device carries out concentration and cooling on an electrolyte in potassium perchlorate production. A grinding device crushes and crystallizes potassium perchlorate. Through a re-crystallization method, high-purity potassium perchlorate crystals are produced. The method has simple processes. Through a liquid-liquid system arrangement method, measurement in potassium chloride production is accurate, quality can be easily controlled, a sandwich material is avoided, solid wastes are easily removed, and harmful solid waste production is prevented. Through a chlorine removal device, acid and alkali raw materials are saved. Through a solution condensation device, superfluous water in the solution can be removed. Through an eddy flow densification system, crystallization efficiency is improved.

Description

technical field [0001] The invention belongs to the chemical industry field, in particular to a kind of production equipment and method of potassium perchlorate. Background technique [0002] It is more difficult to produce potassium perchlorate with potassium chlorate as the metathesis raw material. The main difficulty is that after the metathesis, the two crystal forms of potassium chlorate and potassium perchlorate are monoclinic crystals, which are easily accompanied by formation from dissolution to crystallization, making the purification of potassium perchlorate very difficult. As a result, the equipment investment is greatly increased, the operating cost is increased, and the demand for steam is large. Therefore, the mainstream production process in the industry is to generate potassium perchlorate by metathesis of potassium chloride and sodium perchlorate, and this method also causes environmental protection problems such as the discharge of mother liquor brine, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B11/18C25B1/26C25B15/00
CPCC01B11/18C01P2006/82C25B1/265C25B15/00
Inventor 于洪涛张福彪吴永生单建
Owner 汝城县三鑫电化有限公司
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