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Method for preparing glycine zinc chelate

A technology of zinc glycinate and chelate compound is applied in the field of preparation of zinc-containing chelate compound, which can solve the problems of time-consuming and energy-consuming, difficult to industrialized production, complicated preparation process, etc., and achieves low energy consumption, fast reaction speed and simple process. Effect

Inactive Publication Date: 2014-07-16
HARBIN DEBANG DINGLI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art that the preparation process is cumbersome, time-consuming and energy-consuming, and it is difficult to realize industrialized production, and the zinc glycinate prepared by the method has a definite crystal shape, and the product has high purity

Method used

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  • Method for preparing glycine zinc chelate
  • Method for preparing glycine zinc chelate
  • Method for preparing glycine zinc chelate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1), weigh 13.9g of ZnSO 4 ·7H 2 O, added to 25ml deionized water, stirred to form ZnSO with a molar concentration of 2.0mol / L 4 Aqueous solution; weigh 7.5g of glycine, add it to 50ml deionized water, stir to form a glycine aqueous solution with a molar concentration of 2.0mol / L; weigh 4g of sodium hydroxide, add it to 100ml deionized water, and stir to form a molar concentration It is 1.0mol / L sodium hydroxide aqueous solution.

[0021] (2), the ZnSO 4 The aqueous solution and the sodium hydroxide aqueous solution were poured into two separating funnels respectively, and were added dropwise in the glycine aqueous solution simultaneously, and the titration rate of the zinc salt solution and the sodium hydroxide solution was adjusted to be 5ml / min, and the pH value of the control reaction solution was 6.0 , The molar ratio of zinc salt and glycine added is 2:1. The reaction resulted in a white precipitate, which was aged in the mother liquor for 12 hours.

[0022] ...

Embodiment 2

[0025] (1), weigh 13.9g of ZnSO 4 ·7H 2 O, added to 25ml deionized water, stirred to form ZnSO with a molar concentration of 2.0mol / L 4 Aqueous solution; weigh 7.5g of glycine, add it to 50ml deionized water, stir to form a glycine aqueous solution with a molar concentration of 2.0mol / L; weigh 4g of sodium hydroxide, add it to 100ml deionized water, and stir to form a molar concentration It is 1.0mol / L sodium hydroxide aqueous solution.

[0026] (2), the ZnSO 4 The aqueous solution and the sodium hydroxide aqueous solution were poured into two separating funnels respectively, and were added dropwise in the glycine aqueous solution simultaneously, and the titration rate of the zinc salt solution and the sodium hydroxide solution was adjusted to be 5ml / min, and the pH value of the control reaction solution was 5.0 , The molar ratio of zinc salt and glycine added is 2:1. A white precipitate was obtained in the reaction, and the precipitate was aged in the mother liquor for 8h...

Embodiment 3

[0029] (1), weigh 13.9g of ZnSO 4 ·7H 2 O, added to 25ml deionized water, stirred to form ZnSO with a molar concentration of 2.0mol / L 4 Aqueous solution; weigh 7.5g of glycine, add it to 50ml deionized water, stir to form a glycine aqueous solution with a molar concentration of 2.0mol / L; weigh 4g of sodium hydroxide, add it to 100ml deionized water, and stir to form a molar concentration It is 1.0mol / L sodium hydroxide aqueous solution.

[0030] (2), ZnSO Aqueous solution and sodium hydroxide aqueous solution are poured in two separating funnels respectively, are added dropwise in glycine aqueous solution simultaneously, the titration rate of adjusting zinc salt solution and sodium hydroxide solution is 5ml / min, and control reaction The pH value of the solution is 5.5, and the molar ratio of zinc salt and glycine added is 2:1. A white precipitate was obtained in the reaction, and the precipitate was aged in the mother liquor for 15 hours.

[0031] (3) The white precipitate...

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Abstract

The invention relates to a method for preparing a glycine zinc chelate. The method comprises steps of 1, preparing zinc salt solution, glycine water solution and sodium hydroxide water solution; 2, simultaneously dripping zinc salt solution and sodium hydroxide water solution into the glycine water solution, regulating the speed of dripping the sodium hydroxide water solution, controlling the pH value of a reaction solution to be 5-7, reacting so as to obtain white precipitate, ageing the white precipitate in the reaction solution for 8-15 hours; 3, carrying out suction filtering on the mixture formed by the white precipitate obtained in step 2 and the reaction solution at reduced pressure, and then drying the mixture, so as to obtain tabular white crystal. As the soluble zinc salt and glycine react in water solution, the method has characteristics of high reaction speed and high product purity. In addition, the method can be carried out at room temperature and has the advantage of low energy consumption. Moreover, the prepared glycine zinc has the platelike geometrical shape.

Description

technical field [0001] The invention relates to the technical field of preparation of zinc-containing chelates, in particular to a preparation method of zinc glycine chelates. Background technique [0002] Zinc is one of the trace elements of life and one of the essential nutrients for human and animals to maintain life and growth. It participates in the composition and metabolism of various enzymes in the body. Zinc has the functions of accelerating growth and development, improving taste, regulating body immunity, preventing infection and promoting wound healing. Zinc deficiency can cause many diseases. A large number of tests have shown that zinc glycinate can improve the body's immunity, improve animal production performance, and has no toxic and side effects. Compared with inorganic zinc salts, it has the advantages of high bioavailability, fast absorption speed and good chemical stability. [0003] The preparation method of zinc glycinate can generally be divided into...

Claims

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Application Information

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IPC IPC(8): C07C229/76C07C229/08C07C227/18
Inventor 邓志刚许甲平
Owner HARBIN DEBANG DINGLI BIOTECH CO LTD
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