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Production method of glycine

A production method and technology of glycine, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve problems such as nutritional imbalance and impact on health, and achieve the effect of no three wastes discharge, good product quality, and high quality

Inactive Publication Date: 2014-01-29
XINYI HANLING BIO ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the human body consumes too much glycine, not only can it not be absorbed and utilized by the human body, but it will also break the body's absorption balance of amino acids and affect the absorption of other amino acids, resulting in nutritional imbalance and affecting health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Put 28% of the water into the reaction kettle, add 10% of the total amount of monochloroacetic acid while stirring, and raise the temperature to 42°C-44°C, keep the temperature constant, add the total amount while stirring The amount of ammonia water is 60%, and the temperature is raised to 52°C-54°C. After stirring for 2.5 hours, the temperature continues to rise to 80°C to remove residual ammonia; % activated carbon, the decolorization was completed after stirring and reacting for 1 hour, and the filtered filtrate was sent to a crystallization kettle, and a volume of 3 times the amount of ethanol with a content of 95% was added, and the crystallization was completed after standing for 10 hours; the liquid in the crystallization kettle Drain, send the glycine crystals to a centrifuge for separation to remove a small amount of water, then send the separated glycine crystals to a vacuum dryer for drying, and dry them at 65°C-75°C for 9-11 hours. After drying, you can get ...

Embodiment 2

[0016] Put 28.5% of the total water into the reaction kettle, add 10% of the total amount of monochloroacetic acid while stirring, and raise the temperature to 42°C-44°C, keep the temperature constant, add the total amount while stirring The amount of ammonia water is 59.5%, and the temperature is raised to 52°C-54°C, and the temperature is continued to rise to 80°C after stirring for 2.5 hours to remove residual ammonia; % activated carbon, the decolorization was completed after stirring and reacting for 1 hour, and the filtered filtrate was sent to a crystallization kettle, and a volume of 3 times the amount of ethanol with a content of 95% was added, and the crystallization was completed after standing for 10 hours; the liquid in the crystallization kettle Drain, send the glycine crystals to a centrifuge for separation to remove a small amount of water, then send the separated glycine crystals to a vacuum dryer for drying, and dry them at 65°C-75°C for 9-11 hours. After dryi...

Embodiment 3

[0018] Put 29% of the water into the reaction kettle, add 10% of the total amount of monochloroacetic acid while stirring, and raise the temperature to 42°C-44°C, keep the temperature constant, add the total amount while stirring The amount of ammonia water is 59%, and the temperature is raised to 52°C-54°C, and the temperature is raised to 80°C after stirring for 2.5 hours to remove residual ammonia; % activated carbon, the decolorization was completed after stirring and reacting for 1 hour, and the filtered filtrate was sent to a crystallization kettle, and a volume of 3 times the amount of ethanol with a content of 95% was added, and the crystallization was completed after standing for 10 hours; the liquid in the crystallization kettle Drain, send the glycine crystals to a centrifuge for separation to remove a small amount of water, then send the separated glycine crystals to a vacuum dryer for drying, and dry them at 65°C-75°C for 9-11 hours. After drying, you can get glyc...

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Abstract

The invention discloses a production method of glycine. The glycine belongs to the field of preparation of amino acid. The glycine finished product is prepared through processes such as synthesizing, decoloring, crystallizing, centrifugal separation and drying based on monochloro acetic acid, ammonium hydroxide, activated carbon and 95% ethanol as raw materials, and a reaction kettle, a decoloring kettle, a crystallization kettle, a centrifugal machine and a vacuum drier as equipment. The production method has the advantages that the process is simple, the general equipment is adopted, no three wastes (waste gas, waste gas and solid waste) are discharged, high-temperature high-pressure reaction is not performed, the operation is convenient, the glycine is high in quality, and high-quality glycine can be produced as mass. The glycine can be applied to pharmaceutical treatment of diseases such as myasthenia gravis, progressive muscular dystrophy, gastric ester excess symptom, chronic enteritis and children hyperprolinemia, and can serve as a nutritive additive of chicken feed, serve as a seasoning and a preservative for foods and serve as an intermediate in agrochemical production.

Description

technical field [0001] The invention belongs to the field of amino acid production, in particular to a production method of glycine. Background technique [0002] Glycine is the simplest one among the 20 members of the amino acid series, also known as aminoacetic acid, with a molecular formula of C2H5NO2, a molecular weight of 75.07, a density of 1.1607, and a melting point of 232-236°C. It is white crystal or light yellow crystalline powder at room temperature. The unique sweet taste can ease the acid and alkali taste, cover up the bitter taste of saccharin added in food and enhance the sweet taste. It is a non-essential amino acid for human body. Glycine has both acidic and basic functional groups in the molecule. It is soluble in water but insoluble in ethanol and ether. It is a strong electrolyte in aqueous solution and has a large solubility in strong polar solvents. With high boiling point and melting point, glycine can exhibit different molecular forms by adjusting t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C229/08C07C227/08
Inventor 不公告发明人
Owner XINYI HANLING BIO ENG
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