Preparation process of dense soda ash

A technology of heavy soda ash and preparation process, which is applied in the direction of changing the content of crystallization water by alkali metal carbonate, can solve the problems of cumbersome operation, complicated process and high investment cost of heavy soda ash production, and achieves simple process steps and reduced investment cost. , the effect of reducing the investment of personnel

Active Publication Date: 2019-03-12
BEIJING JINJING WISDOM CO LTD
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Problems solved by technology

[0004] In order to make up for the deficiencies of the prior art and to solve the problems of high investment cost, complicated process and cumbersome operation in the production of heavy soda ash in the prior art, the present invention proposes a heavy soda ash preparation process

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  • Preparation process of dense soda ash
  • Preparation process of dense soda ash

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Embodiment Construction

[0028] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] Such as Figure 1 to Figure 5 Shown, a kind of heavy soda ash preparation technique of the present invention, this technique comprises the following steps:

[0030] S1: Add anti-solvent and distilled water into the reaction kettle at a mass ratio of 1:1 to 1:5, and the anti-solvent is one of ethylene glycol, glycerol or diethylene glycol; the anti-solvent can increase carbon The rate at which sodium crystallizes;

[0031] S2: Slowly add sodium carbonate into the reaction kettle described in S1, the mass ratio of sodium carbonate to anti-solvent is 1:5, stir for 1-2 hours, and control the stirring temperature at 60-90°C; the purpose of stirring is Accelerate the dissolution rate of sodium carbonate, and the purpose of controlling the stirr...

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Abstract

The invention belongs to the technical field of soda ash preparation, in particular to a preparation process of dense soda ash. The process comprises the steps that an antisolvent and distilled waterare added into a reaction kettle according to a mass ratio from 1:1 to 1:5, wherein the antisolvent is one of ethanediol, glycerol or diethylene glycol; sodium carbonate is slowly added into the reaction kettle, wherein a mass ratio of the sodium carbonate to the antisolvent is 1:5, stirring is carried out for 1-2 h, and the temperature of stirring is controlled at 60-90 DEG C; the stirred sodiumcarbonate solution is placed into a crystallizer for dense soda ash production to be treated to obtain white crystals; and the obtained white crystals are fed into a drying oven, and placed for 2-3 hat the temperature of 70-100 DEG C, so that the white granule dense soda ash is obtained. The steps are simple, the dense soda ash can be obtained without calcination through the antisolvent crystallization technology, staff input is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of soda ash preparation, in particular to a preparation process of heavy soda ash. Background technique [0002] Heavy soda ash can be divided into ordinary heavy soda ash and high-quality heavy soda ash according to the advantages and disadvantages of chemical composition, and can be divided into ordinary heavy soda ash and super heavy soda ash according to different physical properties (mainly referring to heavy weight). Compared with heavy soda ash and light soda ash Due to its heavy weight, heavy soda ash saves packaging materials and low transportation and storage costs. During use, alkali dust is not easy to fly, which greatly reduces the loss of flying and environmental pollution. If the chemical composition enters the grade of high-quality heavy soda ash, it is also It can reduce equipment corrosion and increase the heat exchange capacity of equipment, so it is very popular among users. [0003] Hea...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01D7/35
CPCC01D7/35
Inventor 许正臧晨晨陈同翔
Owner BEIJING JINJING WISDOM CO LTD
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