Preparation method of feed-grade methionine hydroxy copper chelate

A copper hydroxymethionine, feed-grade technology, applied in the field of animal breeding, can solve the problems of mixing impurities in products, difficult to promote, and time-consuming, and achieve the effects of reduced production costs, simplified processes, and fast reaction rates.

Active Publication Date: 2017-11-10
GUANGHAN LONGDA FEED
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Problems solved by technology

The method is to first generate potassium hydroxymethionine through the reaction of hydroxymethionine and potassium hydroxide, and then through the displacement reaction between potassium methionine and copper chloride, the copper hydroxymethionine is separated th

Method used

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  • Preparation method of feed-grade methionine hydroxy copper chelate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare feed grade hydroxymethionine copper chelate product A according to the following method:

[0030] (1) Dissolving solid copper sulfate pentahydrate, removing insoluble matter by pressure filtration, to obtain copper sulfate solution.

[0031] (2) Add sodium hydroxide solution to the copper sulfate solution, and after fully reacting, collect the solid phase by means of pressure filtration, and then wash away the sodium sulfate contained in the solid phase, sodium hydroxide and other soluble substances by washing with water , using barium chloride to detect whether the sulfate radicals have been rinsed clean, to obtain water-washed slag.

[0032] (3) The washing residue is transferred to the reaction tank, and water is added to homogenize. The copper content of the extracted homogenate was 23.3% (mass percentage).

[0033] (4) By measuring the copper content, the chelation reaction was carried out according to the molar ratio of copper to hydroxymethionine of 1:2...

Embodiment 2

[0038] Prepare feed grade hydroxymethionine copper chelate product B according to the following method:

[0039] (1) Dissolving solid cupric chloride dihydrate, removing insoluble matter by pressure filtration, to obtain cupric chloride solution.

[0040] (2) add sodium hydroxide solution in cupric chloride solution, collect solid phase matter by the mode of pressure filtration after fully reacting, then the sodium chloride contained in the solid phase matter by the mode of water washing, the soluble substances such as sodium hydroxide Rinse well to obtain washed residue.

[0041] (3) The washing residue is transferred to the reaction tank, and water is added to homogenize. The extraction homogenate detects that the copper content is 25.1% (mass percentage)

[0042] (4) By measuring the copper content, the chelation reaction was carried out according to the molar ratio of copper to hydroxymethionine of 1:2.1, the reaction temperature was 25°C, the reaction time was 20 minute...

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Abstract

The invention relates to a production method of a feed additive, and particularly discloses a preparation method of a feed-grade methionine hydroxy copper chelate. The preparation method includes the steps that firstly, a metered sodium hydroxide reagent is added into an inorganic salt water solution of copper, and a solid substance is obtained; secondly, the solid substance is washed to remove soluble components in the solid substance; thirdly, water is added into washing residues for homogenization; fourthly, 2-hydroxy-4-(methylthio)butyric acid is added for a chelation reaction, wherein the molar ratio of copper in the homogenate to 2-hydroxy-4-(methylthio)butyric acid is smaller than or equal to 0.5; fifthly, the reaction product is subjected to aftertreatment to obtain the product. The method has the advantages that the methionine hydroxy copper chelate product with higher purity can be prepared, and the product is more suitable for serving as a feed additive; the chelation reaction rate is high, the energy consumption is low, the chelation reaction can be conducted at a high rate at the normal temperature, and the production method is simple and easy to popularize in the industry.

Description

technical field [0001] The invention relates to the field of animal breeding, in particular to a preparation method of a feed additive. Background technique [0002] Trace element copper can effectively participate in important physiological processes such as cell oxidation, bone and connective tissue formation, keratinization and tissue pigmentation, and spinal cord myelin formation, and plays an important role in maintaining normal cardiac function. Copper is also an essential component of some enzyme systems, especially the metalloenzymes related to cell oxidation, which directly participate in the body's metabolism. Copper is closely related to the absorption and function of iron. It can maintain the normal metabolism of iron, which is beneficial to the synthesis of hemoglobin and the maturation of red blood cells. It can also participate in the reproductive activities of the body by promoting the secretion of luteinizing hormone releasing hormone from the hypothalamus. ...

Claims

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Application Information

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IPC IPC(8): C07C319/20C07C323/52
CPCC07C319/20C07C323/52
Inventor 吴兵邵勇杰李奉仙
Owner GUANGHAN LONGDA FEED
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