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Potassium chlorate production equipment and method

A technology of production equipment and production methods, applied in the direction of chloric acid, chlorate, chemical instruments and methods, etc., can solve the problems of acid and alkali waste, achieve the effects of preventing harmful solid waste, increasing crystallization efficiency, and quality control

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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  • Potassium chlorate production equipment and method
  • Potassium chlorate production equipment and method
  • Potassium chlorate production equipment and method

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Experimental program
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Effect test

Embodiment 1

[0027] Such as Figure 1-Figure 3 The production equipment of a kind of potassium chlorate shown comprises alkaline sodium chloride dissolving device 1 and potassium chloride dissolving device 2, and potassium chloride dissolving device 2 is communicated with metathesis reaction equipment 5 by the first filter 3; Alkaline sodium chloride Dissolving device 1 is communicated with electrolytic tank 4, electrolytic tank 4 is communicated with chlorine removal device 6 and metathesis reaction equipment 5, metathesis reaction equipment 5 is communicated with crystallizer 7, crystallizer 7 is communicated with centrifugal device 8, and centrifugal device 8 is communicated with alkaline sodium chloride The dissolving device 1; the crystallizer 7 is connected with a solution concentration device 9; the alkaline sodium chloride dissolving device 1 and the potassium chloride dissolving device 2 are both connected with a flow meter 14.

[0028] Chlorine removal device 6 comprises the spra...

Embodiment 2

[0035] A kind of production method of potassium chlorate, comprises the steps:

[0036] Step 1: Dissolve sodium chloride to form a sodium chloride solution, add NAOH or KOH to adjust the pH value of the sodium chloride solution to 10-11; dissolve potassium chloride to form a potassium chloride solution; add Na to the potassium chloride solution 2 CO 3 and NaOH to remove impurities.

[0037] In this patent, after potassium chloride is dissolved into a homogeneous phase, there is only one solute of KCl and a small amount of calcium and magnesium ions in the solution. After adding Na2CO3 and NaOH, CaCO3 and Mg(OH)2 will be produced and settled. Compared with the removal of impurities by multi-component systems, there are no dangerous substances such as NaCIO3 and KCIO3 and heavy metal salts such as Na2Cr2O7 brought into the salt mud, and only a small amount of KCI in the solid waste is general industrial solid waste, without environmental hazards and troubles in disposal, and so...

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Abstract

The invention relates to potassium chlorate production equipment and a potassium chlorate production method. The equipment comprises an alkaline sodium chloride dissolving device and a potassium chloride dissolving device. The potassium chloride dissolving device is communicated with a double decomposition reaction facility through a first filter device. The alkaline sodium chloride dissolving device is communicated with an electrolytic tank. The electrolytic tank is communicated with a chlorine gas removing device and the double decomposition reaction facility. The double decomposition reaction facility is communicated with a crystallizer. The crystallizer is communicated with a centrifugal device. The centrifugal device is communicated with the alkaline sodium chloride dissolving device. The crystallizer is communicated with a solution concentrating device. The alkaline sodium chloride dissolving device and the potassium chloride dissolving device are both connected to a flow meter. Through a liquid-liquid system configuration mode, metering in potassium chloride production is precise; the quality is easy to control; there is no sandwiched material; the solid wastes can be easily removed, the generation of harmful solid waste is prevented; by arranging a chlorine gas removing device, the acid and alkali raw materials are saved; by arranging the solution concentrating device, excess water in the solution can be removed, and the added swirl concentrating system increases the crystallization efficiency.

Description

technical field [0001] The invention belongs to the chemical industry field, in particular to a kind of production equipment and method of potassium chlorate. Background technique [0002] The traditional potassium chlorate production process is the solid (potassium chloride)-liquid (electrolyte) configuration method used. In this way, not only the measurement is not accurate enough, the quality is not easy to control, and sandwich materials are prone to appear; moreover, the traditional impurity removal process is required, and the combination of soda ash and caustic soda is used to make the impurity Ca of potassium chloride 2+ and Mg 2+ CaCO 3 and Mg(OH) 2 After settling down, the Ca in the brine is made 2+ and Mg 2+ The total amount is controlled within 5ppm, which can be regarded as qualified brine. However, the solution environment of the traditional process is a multi-component system, which is a relatively complex mixture, such as NaCl, NaCIO3, KCIO3, Na2Cr2O7 i...

Claims

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Application Information

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IPC IPC(8): C01B11/14
CPCC01B11/14C01B11/145
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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