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Carbonation and crystallization equipment, application thereof and preparation method for sodium bicarbonate

A technology of crystallization equipment and sodium bicarbonate, which is applied in bicarbonate preparation, alkali metal carbonate shape preparation, chemical instruments and methods, etc., can solve the problems of low production efficiency and large energy loss of carbonation tower, and achieve improvement Operating efficiency and production efficiency, reducing energy consumption, and realizing the effect of large-scale development

Pending Publication Date: 2018-11-23
BEIJING EDGEIN TECH +1
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Problems solved by technology

[0005] The first purpose of the present invention is to provide a carbonation crystallization equipment to alleviate the technical problems of low production efficiency of carbonation towers in the prior art and large energy losses due to cleaning

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  • Carbonation and crystallization equipment, application thereof and preparation method for sodium bicarbonate

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Embodiment Construction

[0043] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described implementations are part of the implementations of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0044]In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element mu...

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Abstract

The invention provides carbonation and crystallization equipment, application thereof and a preparation method for sodium bicarbonate, and relates to the field of chemical equipment. The carbonation and crystallization equipment comprises a crystallization barrel and a carbonization reactor, the carbonization reactor is arranged outside the crystallization barrel and is communicated with the crystallization barrel, and reaction final liquid in the carbonization reactor can enter the crystallization barrel for crystallization treatment. The carbonation nad crystallization equipment has the advantages that the technical problems that an existing carbonation tower is low in production efficiency and large in energy loss due to cleaning can be solved, and the technical effects that the operation efficiency and the production efficiency of the equipment are improved, and the energy consumption is reduced can be achieved.

Description

technical field [0001] The invention relates to the field of chemical equipment, in particular to a carbonation crystallization equipment and its application and a preparation method of sodium bicarbonate. Background technique [0002] with CO 2 Gas or partially containing (eg 40%) CO 2 The gas carbonation of sodium carbonate is an important method to produce food-grade or pharmaceutical-grade sodium bicarbonate, and the carbonation reaction is usually carried out in a carbonation tower. [0003] At present, the carbonation towers mainly used in industry are mushroom cap towers and sieve plate towers. In the towers, the three processes of mass transfer, crystallization and heat transfer are carried out at the same time. The typical carbonation tower is the Solvay carbonation tower, that is, the circle , mushroom cap, bottom bucket and cooling water tank, stacked as the basic form. CO 2 The gas enters from the bottom of the carbonation tower, forms bubbles and flows in a ...

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Application Information

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IPC IPC(8): C01D7/10C01D7/40B01D9/02B01J19/00
CPCB01D9/00B01J19/0053C01D7/10C01D7/40B01D2009/0086
Inventor 孔德利唐印宋国天雷林龚元德刘朝慧郭利红
Owner BEIJING EDGEIN TECH
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