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Trimethylglycine hydrochloride mother liquor treatment process

A technology for the treatment of trimethylglycine hydrochloride mother liquor, which is applied in the field of trimethylglycine hydrochloride mother liquor treatment technology, and achieves considerable economic benefits

Active Publication Date: 2014-01-22
山东祥维斯生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a trimethylglycine hydrochloride mother liquor treatment process, which can reasonably and effectively treat the mother liquor, reduce pollution and waste, thereby eliminating the defects in the above-mentioned background technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of trimethylglycine hydrochloride mother liquor treatment process, the steps are as follows:

[0033] S1. Heat 300kg trimethylglycine hydrochloride mother liquor to 85°C, filter it through an activated carbon filter stick into a 500L reactor, and filter to remove part of the color and solid impurities. Trimethylglycine hydrochloride mother liquor refers to the use of chloroacetic acid and Trimethylamine is carried out atmospheric pressure reaction in sodium carbonate as raw material, after ion exchange elutes trimethylglycine hydrochloride mother liquor;

[0034] S2. Concentrate the mother liquor until it becomes viscous (100.51 kg of distilled water), cool it to 40°C under stirring, add liquid caustic soda to adjust the pH value to 8, and control the temperature at 80°C to produce a large amount of trimethylamine out of the system, and use hydrochloric acid for the produced trimethylamine Absorbed and recovered to obtain 43.24kg of trimethylamine aqueous solutio...

Embodiment 2

[0042] A kind of trimethylglycine hydrochloride mother liquor treatment process, the steps are as follows:

[0043] S1. Heat 1000kg trimethylglycine hydrochloride mother liquor to 90°C, filter it through an activated carbon filter stick into a 2000L reaction kettle, and filter to remove part of the color and solid impurities. Trimethylglycine hydrochloride mother liquor refers to the use of chloroacetic acid and Trimethylamine is carried out atmospheric pressure reaction in sodium carbonate as raw material, after ion exchange elutes trimethylglycine hydrochloride mother liquor;

[0044] S2. Concentrate the mother liquor until viscous (distilled water 342.18kg), cool to 50°C under stirring, add liquid caustic soda to adjust the pH value to 8, and control the temperature to 75°C, a large amount of trimethylamine will be released from the system, and the produced trimethylamine will be washed with hydrochloric acid Absorbed and recovered to obtain 188.84kg of trimethylamine aqueo...

Embodiment 3

[0052] A kind of trimethylglycine hydrochloride mother liquor treatment process, the steps are as follows:

[0053] S1. Heat 2000kg trimethylglycine hydrochloride mother liquor to 95°C, filter it into a 4000L reaction kettle through an activated carbon filter stick, and filter to remove part of the color and solid impurities. Trimethylglycine hydrochloride mother liquor refers to the use of chloroacetic acid and Trimethylamine is carried out atmospheric pressure reaction in sodium carbonate as raw material, after ion exchange elutes trimethylglycine hydrochloride mother liquor;

[0054] S2. Concentrate the mother liquor until it becomes viscous (700.44kg of distilled water), cool it to 50°C under stirring, add liquid caustic soda to adjust the pH value to 9, control the temperature at 80°C, and produce a large amount of trimethylamine out of the system, and use hydrochloric acid to produce trimethylamine Absorb and recover 370.39kg of trimethylamine aqueous solution;

[0055] S...

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PUM

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Abstract

The invention discloses a trimethylglycine hydrochloride mother liquor treatment process which comprises the following steps of heating trimethylglycine hydrochloride mother liquor to be 85-95 DEG C, filtering to remove a part of color and solid impurities, concentrating the mother liquor to be thick, cooling to be 40-50 DEG C under stirring, adding a caustic soda liquid to adjust the pH value to be 8-9, controlling the temperature to be less than 80 DEG C so as to generate a great amount of trimethylamine separation systems, after the pH is adjusted, heating to vaporize a part of the moisture, cooling to be 55-65 DEG C, adding hydrochloric acid to adjust the pH value to be 3-4, depressurizing, heating and concentrating to remove the moisture, when the system is thick, stopping heating, feeding methanol with the weight which is 4-5 times that of a semisolid substance in a kettle, continuing stirring for 10-30 minutes, filtering to remove sodium chloride, recycling the sodium chloride, and concentrating the methanol so as to obtain solid trimethylglycine hydrochloride. Due to adoption of the process, the trimethylglycine hydrochloride mother liquor can be effectively recycled, treated and utilized.

Description

technical field [0001] The invention relates to a process for treating trimethylglycine hydrochloride mother liquor. Background technique [0002] Trimethylglycine hydrochloride is a general term for a class of organic compounds, also known as betaine hydrochloride, which is a white to slightly yellow crystalline powder with a sour taste and hygroscopicity. It is easily soluble in water and ethanol, but insoluble in Diethyl ether, chloroform, reaction with alkali, molecular weight: 153.61. [0003] With the continuous understanding of trimethylglycine hydrochloride, its application has also expanded to many fields. In the feed industry, trimethylglycine hydrochloride as an additive can not only promote animal fat metabolism, but also play a key role in regulating osmotic pressure, alleviating stress, promoting fat metabolism, protein synthesis, and preventing coccidiosis. Function; in food application, it has the functions of improving eyesight, anti-fatty liver and protec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C229/12C07C227/40C01D3/04
Inventor 马兴群丁振柱张守伟张毅丰曾凡伟孟涛
Owner 山东祥维斯生物科技股份有限公司
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