Synthetic method of beet alkali and beet alkali hydrochlorate

Abstract

The invention provides a synthesis method of betaine and betaine hydrochloride salt, comprising the steps as follows: strong alkali negative ion resin is selected as a carrier and is treated into a hydroxide radical type; elution is carried out by using a chloroactic acid solution; cycle elution is carried out using a trimethylamine solution; scrubbing is carried out by using distilled water, and cleaning solution is combined with cycle eluent, then vacuum distillation is carried out so as to achieve vicidity, and the vacuum distillation is continued until powder or small flake white betaine with water is obtained; the betaine with water is dissolved using absolute ethyl alcohol and is carried out vacuum distillation to obtain betaine anhydrous, with yield of more than 93 percent and purity of more than 98.5 percent; the sticky matter after the vacuum distillation is added with hydrochloric acid and stirred then subjected to the vacuum distillation so as to obtain the powder or small flake white betaine hydrochloride salt, with yield of more than 94 percent and purity of more than 98 percent. The method of the invention has advantages of simple and convenient technique, low production cost, moderate operation condition and environmental-friendliness; the products of the invention are applicable to the application in such fields as feedstuff, food, cosmetics, medicine, biological agent, and chemical industry, etc.

Description

technical field

[0001] The invention relates to a quaternary ammonium alkaloid, in particular to a method for synthesizing betaine and betaine hydrochloride. Background technique

[0002] Betaine, namely Betaine, chemical name: N, N, N-trimethylglycine inner salt, structural formula: (CH 3 ) 3 N + CH 2 COO - , is a quaternary ammonium alkaloid, which is widely found in animals and plants, and is named for it mainly exists in the molasses of beet sugar. Betaine is a quaternary amphoteric amphoteric compound, so betaine is often used as a surfactant and a leveling agent for vat dyeing. It can be used as a cleaning agent component in the cosmetics industry and is widely used in chemical, pharmaceutical and other industries; because betaine There are three active methyl groups connected to the nitrogen atom of the nitrogen atom, which has a unique physiological activity of the methyl donor. It can replace methionine and choline chloride. feed conversion efficiency. [000...

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