Prepn process of amino acid-calcium chelate

An amino acid, chelated calcium technology, applied in the preparation of organic compounds, chemical instruments and methods, cyanide reaction preparation and other directions, can solve the problems of high process cost, mass production, low product purity, low complexation rate, etc. The effect of low process cost, high product purity and high product conversion rate

Inactive Publication Date: 2007-03-21
HUAQIAO UNIVERSITY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] At present, there are mainly two kinds of production methods of amino acid chelated calcium: one is to directly mix amino acid and calcium source in water to carry out complexation reaction to obtain amino acid chelated calcium, which has the disadvantages of low complexation rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Prepare 1L of 1mol / L calcium chloride solution, and completely convert 200g of 732 strong acid type cation exchange resin into calcium type resin for future use. Accurately weigh 52.472g and 8g of leucine and sodium oxychloride respectively, prepare 1.5L of leucine and sodium hydroxide mixed solution at a molar ratio of 2:1, and apply the above-mentioned calcium-type cation exchange resin to the mixed solution at normal temperature The column has a specification of Φ2.5cm and a height of 50cm. The effluent is collected at a flow rate of 0.17BV / h, concentrated and crystallized in a vacuum, and finally a white leucine chelated calcium product is obtained.

Embodiment 2

[0015] Prepare 2L of 1mol / L calcium chloride solution, and completely convert 300g of 732 strong acid type cation exchange resin into calcium type resin for later use. Accurately weigh 39.354g and 12g of leucine and sodium oxychloride respectively, prepare 3L of leucine and sodium hydroxide mixed solution at a molar ratio of 1:1, and put the mixed solution on the above-mentioned calcium-type cation exchange resin column at normal temperature , The column specification is Φ3.5cm, the height is 50cm, the effluent is collected at a flow rate of 0.25BV / h, then vacuum concentrated and crystallized, and finally white leucine chelated calcium products are obtained.

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Abstract

The present invention discloses preparation process of amino acid-calcium chelate. Through converting strong acid type cationic exchange resin into calcium type with calcium ion, reacting in column with mixed solution of leucine and sodium hydroxide in the molar ratio of 1 to 0.5-2 at normal temperature, collecting the effluent at the flow rate of 0.05-1 BV/hr, and vacuum concentration to crystallize leucine-calcium chelate. The leucine-calcium chelate has high water solubility, high absorption rate, no stimulation to gastrointestinal tract and other features, and can meet the requirement of human body in replenishing calcium and amino acid. The preparation process has the advantages of low production cost, high conversion rate and high product purity, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for producing an amino acid chelated calcium by using leucine and calcium chloride as main raw materials, which belongs to the method for synthesizing organic calcium by ion exchange. Background technique [0002] Calcium is the most abundant mineral element in living organisms. In addition to being a component of the body's bones and teeth, calcium also participates in various physiological activities and plays an extremely important role in the life activities of living things, especially chickens, ducks, geese, etc. Animals need a lot of calcium supplementation during spawning. At present, calcium additives in the domestic market mainly fall into the following three categories from the perspective of calcium source composition: (1) Products based on inorganic salts, such as mineral calcium carbonate, chemically synthesized calcium carbonate, calcium hydrogen phosphate, calcium chloride, etc.; 2) Products based on c...

Claims

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Application Information

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IPC IPC(8): C07C229/76C07C229/08C07C227/16
Inventor 甘林火翁连进韩媛媛
Owner HUAQIAO UNIVERSITY
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