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Method for extracting and separating amino acid

An amino acid and extraction technology, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of high energy consumption, low product yield, cumbersome amino acid production process, etc., and achieve high product yield and process. Short route, high purity effect

Inactive Publication Date: 2017-10-10
ANHUI BBCA FERMENTATION TECH ENG RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, in view of the current cumbersome amino acid production process, low product yield and high energy consumption, it is urgent to propose a more economical and effective method for preparing amino acids.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 200g of 12% (mass percentage) alanine solution, put 400g of organic solvent butyl ether in a three-necked flask, carry out vacuum concentration at 60°C, and concentrate until no more condensed water comes out, and the organic solvent containing alanine .

[0031] Transfer the organic solvent containing alanine to another three-necked flask, add water and mix with the organic solvent containing alanine at 60° C., then separate the organic solvent to obtain a solution containing alanine.

[0032] After calculation, the yield of alanine is 98%.

[0033] After testing, the purity of the isolated alanine was 98.5%.

Embodiment 2

[0035] Take 175g of 15% (mass percentage) lysine solution, 400g of organic solvent (including 150g of amyl acetate, 60g of butyl ether, and 190g of amino acid tributyl ester) in a three-necked flask, and carry out vacuum concentration at 70°C until no longer After condensed water came out, an organic solvent containing lysine was obtained.

[0036] Transfer the organic solvent containing lysine to another three-necked flask, add an aqueous solution and mix with the organic solvent containing lysine at 70°C, and then separate the organic solvent to obtain a solution containing lysine.

[0037] After calculation, the yield of lysine is 98%.

[0038] After testing, the isolated lysine has a purity of 98.5%.

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Abstract

The invention relates to the field of chemical industry, and particularly discloses a method for extracting and separating amino acid. Water solution containing the amino acid is mixed with organic solvents, water in the amino acid water solution is removed by evaporation and concentration, so that amino acid molecules more effectively enter an organic phase to obtain an organic phase product containing the amino acid, fewer inorganic salts and other organic impurities enter the organic phase, and the amino acid is separated from other impurities in the water solution. Pure amino acid, amino acid salt or / and other amino acid products can be obtained from the amino acid entering the organic phase by various traditional methods well-known by technical staff in the industry. The method for extracting and separating the amino acid is short in technological route and convenient to operate. The obtained amino acid is high in purity, the amino acid products are high in yield, environmental pollution is less, and the complicated operation process of a traditional amino acid production technology is avoided.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a method for extracting and separating amino acids. Background technique [0002] At present, the extraction method of amino acid is mainly the conventional liquid-liquid extraction method, adding a selected solvent immiscible (or slightly miscible) to the liquid mixture, and using the different solubility of its components in the solvent to achieve separation or extraction purposes. The distribution coefficient of amino acid in the aqueous phase and in the organic phase determines the difficulty of the extracted components into the organic phase. [0003] Therefore, in view of the current situation of cumbersome amino acid production process, low product yield and high energy consumption, it is urgent to propose a more economical and effective method for preparing amino acid. Contents of the invention [0004] In order to solve the problems in the prior art, the object of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C229/08C07C229/26C07C227/40
CPCC07C227/40C07C229/08C07C229/26
Inventor 李荣杰尚海涛潘声龙
Owner ANHUI BBCA FERMENTATION TECH ENG RES