Method for producing 650 betaine

A technology of betaine and ph value, which is applied in chemical instruments and methods, preparation of organic compounds, additional food elements, etc., can solve the problems of high production cost, high energy consumption, low product yield, etc., and achieve low moisture content, Pollution and waste reduction, high economical and environmental effects

Inactive Publication Date: 2016-04-20
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

The above process reaction is not easy to control, easy to produce by-products, low product yield, complex process, high energy consumption, high production cost, and the mother liquor produced after betaine concentration brings huge environmental pressure

Method used

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  • Method for producing 650 betaine

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example 1

[0025] Dissolve 3000kg of chloroacetic acid in 1380kg of water at a ratio of 6:2.75. The chloroacetic acid solution and sodium hydroxide solution are accurately metered by the automatic control valve and then enter the reactor in parallel with a molar ratio of 1.03:1. The continuous feeding and discharging process is in progress. For the reaction, the temperature is controlled at 45℃±5℃, and the pH value is controlled at 5-7. The yield of sodium chloroacetate in this section can reach more than 98%.

[0026] After the neutralization reaction, the trimethylamine and sodium chloroacetate solution were controlled by DCS to conduct a fixed-point reaction at a molar ratio of 1:1. The reaction is conducted at a temperature of 35°C to 46°C and a pressure of -20KPa to 10KPa for 5h to 6h, and the pH value of the aminating solution (a mixture containing betaine, sodium chloride and trimethylamine) is 10-12.

[0027] The amination liquid is separated in a vacuum distillation tower with a pre...

example 2

[0031] Dissolve 3,500 kg of chloroacetic acid in 1610 kg of water at a ratio of 6:2.75. The chloroacetic acid solution and sodium hydroxide solution are accurately measured by the automatic control valve and then flow into the reactor at a molar ratio of 1.1:1 in parallel. The continuous feeding and discharging process is in progress. For the reaction, the temperature is controlled at 50°C±5°C, and the pH value is controlled at 7-9. The yield of sodium chloroacetate in this section can reach more than 98%.

[0032] After the neutralization reaction, the trimethylamine and sodium chloroacetate solution are automatically controlled by DCS to conduct a fixed-point reaction at a molar ratio of 1:1. The reaction is carried out at a temperature of 46℃~58℃ and a pressure of 10KPa~40KPa for 6h~7h, and the pH of the aminating solution is 8~11.

[0033] The amination liquid is separated in a vacuum distillation column with a pressure of -0.07MPa to -0.02MPa, a tower top temperature of 65°C t...

example 3

[0037] Dissolve 4000kg of chloroacetic acid in 1840kg of water at a ratio of 6:2.75. The chloroacetic acid solution and sodium hydroxide solution are accurately measured by the automatic control valve and then enter the reactor in parallel with a molar ratio of 1.2:1. The new process of continuous feeding and discharging is adopted. In the neutralization reaction, the temperature is controlled at 55°C±5°C, and the pH value is controlled at 9-11. The yield of sodium chloroacetate in this section can reach more than 98%.

[0038] After the neutralization reaction, the trimethylamine and sodium chloroacetate solution were controlled by DCS to conduct a fixed-point reaction at a molar ratio of 1:1. The reaction is carried out at a temperature of 58℃~70℃ and a pressure of 40KPa~70KPa for 7h~8h, and the pH of the aminating solution is 6~9.

[0039] The amination liquid is separated in a vacuum distillation column with a pressure of -0.07MPa to -0.02MPa, a tower top temperature of 65°C to...

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Abstract

The invention provides a method for producing 650 betaine. The method comprises steps as follows: chloroacetic acid and sodium hydroxide in the mole ratio being (1.0-1.2):1 have a neutralization reaction at the first preset temperature and under the condition of the preset pH value, and sodium chloroacetate is obtained; trimethylamine and sodium chloroacetate in the mole rate being 1:1 have an amination reaction for preset time at the second preset temperature under the conditions of second preset pH value and preset pressure, and a mixture containing betaine, sodium chloride and trimethylamine is obtained; the mixture is separated, and a light component containing trimethylamine and a heavy component containing a betaine and sodium chloride mixture are obtained; the heavy component is dried; additives such as calcium stearate and the like are added to the dried heavy component. According to the method, concentration, salt filtration and purification of betaine through electrodialysis are not required, and the method has higher economical performance and environmental friendliness.

Description

Technical field [0001] The invention relates to the technical field of chemical production, in particular to a method for producing 650 betaine. Background technique [0002] The chemical name of betaine is trimethylglycine, which is an alkaline substance with molecular formula C 5 H 11 NO 2 , The molecular weight is 117.15, and it has strong moisture absorption properties, so anti-caking agents are often used in the production process. The scaly or prismatic crystals that are easy to absorb moisture will decompose when heated to about 310 ℃, and the taste is sweet. It is very soluble in water, soluble in methanol, soluble in ethanol, and hardly soluble in ether. After the decomposition reaction of concentrated potassium hydroxide solution, trimethylamine can be generated. As a feed additive, betaine has the function of providing methyl donors, saving part of methionine, regulating the osmotic pressure in the body, alleviating stress, promoting fat metabolism and protein synthes...

Claims

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Application Information

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IPC IPC(8): A23K20/142C07C227/08C07C229/12
CPCC07C227/08C07C229/12
Inventor 马兴群罗瑞生王守忠张信阳
Owner 山东祥维斯生物科技股份有限公司
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