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Method for preparing low-sodium NaCl:K<+> salt by using melting recrystallization technology

A low-sodium salt and recrystallization technology, which is applied in the purification of alkali metal chlorides, alkali metal halides, food science, etc., can solve the problems of long-term storage and convenience of low-sodium salts, it is difficult to distribute KCl evenly, store and Inconvenient to use and other problems, to achieve considerable economic and social benefits, simple equipment, not easy to knot effect

Active Publication Date: 2020-01-21
吉林省光盐健道健康管理集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to make KCl evenly distributed in NaCl by mechanical mixing technology
[0009] 2. The taste problem of low sodium salt
[0011] 3. Long-term storage and convenience of use of low-sodium salt
[0012] Contains K + , Mg 2+ Ionic low-sodium salt powder is more hygroscopic, making its storage time shorter and more likely to agglomerate, which brings inconvenience to storage and use

Method used

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  • Method for preparing low-sodium NaCl:K&lt;+&gt; salt by using melting recrystallization technology
  • Method for preparing low-sodium NaCl:K&lt;+&gt; salt by using melting recrystallization technology
  • Method for preparing low-sodium NaCl:K&lt;+&gt; salt by using melting recrystallization technology

Examples

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Embodiment Construction

[0027] The following describes the NaCl:K of the present invention in detail through specific examples + The preparation process of crystalline material, the specific embodiment is as follows:

[0028] 1), select 8kg of high-purity powdered salt with a NaCl content of more than 99.5% and 2kg of KCl salt powder with a content of more than 99.5% and put them into the stirring mixer. After fully mixing, put them into a suitable size 99 porcelain alumina box and move into a high temperature in the furnace;

[0029] 2), the furnace temperature rises to 500 ℃ within 30 minutes, and keeps constant temperature for 1 hour, then continues to rapidly warm to 800 ℃, and keeps constant temperature for 0.5 hours;

[0030] 3), then continue to heat up to 950°C within 20min, stop heating immediately and cool down to 800°C naturally. This process is repeated 2 times.

[0031] 4) Rapidly heat up from 800°C to 1350°C, keep the temperature constant for 5 minutes, then naturally cool down to 80...

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Abstract

The invention discloses a method for preparing low-sodium NaCl by using a melting recrystallization technology. According to the method, K<+> ions enter NaCl crystal lattices to form a new KCl-doped NaCl crystalline compound represented by NaCl:K<+>, wherein the purity of the obtained NaCl:K<+> crystalline product can reach 99% or above, and the yield of the product is larger than 80%; the purityrequirements of application in the fields of high-tech industry, eating and the like on NaCl:K<+> products can be met; the method can significantly improve the production efficiency of large-scale industrial preparation of high-purity NaCl:K<+> products, and predicts that the economic and social benefits are very considerable.

Description

technical field [0001] The invention belongs to the field of NaCl table salt production, in particular to a production of high-purity NaCl:K by means of fusion recrystallization technology. + Process technology methods for low-sodium table salt. Background technique [0002] Sodium chloride is a seasoning agent with important physiological functions for life on earth. The concentration of sodium ions in the blood is directly related to the regulation of safe levels of body fluids. However, a large number of epidemiological data and clinical studies have confirmed that excessive intake of salt can cause Na + Ion excess can lead to many adverse physiological reactions: long-term high-salt diet can increase human blood pressure; other studies have shown that high-salt diet can cause ventricular hypertrophy, ventricular systolic dysfunction, and vascular endothelial dysfunction independently of blood pressure levels. It can also increase the stiffness of blood vessel walls an...

Claims

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Application Information

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IPC IPC(8): C01D3/20C01D3/04A23L27/40
CPCC01D3/20C01D3/04A23L27/40C01P2006/80
Inventor 张继森冯彦忠徐增山
Owner 吉林省光盐健道健康管理集团有限公司
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