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A kind of preparation method and application of zinc valine

A technology of zinc valine and valine, which is applied in the field of preparation of amino acid chelates, can solve the problems of long process cycle, high pollution of waste liquid, difficult purification and the like, and achieves high product purity, no by-products, and chemical reaction. high speed effect

Active Publication Date: 2021-08-10
XINGJIA BIO ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation methods of valine zinc chelate are all liquid-phase system synthesis methods, which have the disadvantages of long process cycle, waste liquid pollution, difficult purification, and high cost.

Method used

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  • A kind of preparation method and application of zinc valine
  • A kind of preparation method and application of zinc valine
  • A kind of preparation method and application of zinc valine

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0038] A method for preparing zinc valine, comprising the following steps: start stirring, add 478.1Kg of valine with a purity of 98% to 3.0t of water for dissolution, heat up to 40°C, and slowly add an active oxidation agent with a zinc content of 77.3%. 169.2Kg of zinc was reacted for 2.5 hours. After the reaction, the reaction system was cooled to below 40°C, crystallized, separated by centrifugal filtration, washed with water three times, and dried in an oven to obtain 612.7Kg of zinc valine.

[0039] In the present embodiment, it is measured that the valine content in the valine zinc product is 72.0%, Zn 2+ The water loss rate is 20.3%, the water loss rate is 5.6% at 180°C, and the water loss rate is 2.0% at 104°C, that is, the purity is 97.9%, and the yield is 95.0% based on valine, that is, the molar ratio of valine to zinc About 2:1, the molecular formula is Zn(C 5 h 10 NO 2 ) 2 ·H 2 O.

[0040] The XRD figure of the zinc valine prepared in the present embodiment...

Embodiment 2

[0042] A method for preparing zinc valine, comprising the following steps: start stirring, add 478.1Kg of valine with a purity of 98% to 5.4t of water for dissolution, then heat up to 55°C, slowly add zinc carbonate with a zinc content of 49.5% 264.0Kg was reacted for 2.5 hours. After the reaction, the reaction system was cooled to below 40°C, 110L of acetone was added to crystallize, separated by centrifugal filtration, washed with water three times, and dried in an oven to obtain 609.8Kg of zinc valine.

[0043] In the present embodiment, it is measured that the valine content in the valine zinc product is 70.9%, Zn 2+ The water loss rate is 20.0%, the water loss rate is 5.5% at 180°C, and the water loss rate is 2.5% at 104°C, that is, the purity is 96.4%, and the yield is 93.1% based on valine, that is, the molar ratio of valine to zinc About 2:1, the molecular formula is Zn(C 5 h 10 NO 2 ) 2 ·H 2 O.

Embodiment 3

[0045] A method for preparing zinc valine, comprising the following steps: start stirring, add 459.0 Kg of valine with a purity of 98% to 2.1 t of water for dissolution, heat up to 68°C, and slowly add a basic formula with a zinc content of 58.4%. 67.2Kg of zinc carbonate was reacted for 0.2h, and then 156.8Kg of basic zinc carbonate with a zinc content of 58.4% was added to react for 2h. After the reaction, the reaction system was cooled to below 40°C to crystallize, and 150L of ethanol was added to crystallize. After separation by centrifugal filtration, water Washed 3 times, dried in an oven to obtain 633.8Kg of zinc valine.

[0046] In the present embodiment, it is measured that the valine content in the valine zinc product is 72.6%, Zn 2+ The water loss rate is 20.5%, the water loss rate is 5.6% at 180°C, and the water loss rate is 1.2% at 104°C, that is, the purity is 98.7%, and the yield is 96.9% based on zinc, that is, the molar ratio of valine to zinc is about 2:1, t...

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Abstract

The invention discloses a preparation method of zinc valine, which comprises the following steps: dissolving valine under stirring and raising the temperature, slowly adding an insoluble zinc source for reaction, cooling the reaction system after the reaction, crystallizing, filtering and separating, After washing and drying, zinc valine can be obtained. The present invention also provides an application of the above zinc valine as an animal feed additive in animals. The method of the invention has the advantages of high chemical reaction rate, high product yield, high product purity and no by-products.

Description

technical field [0001] The invention belongs to the field of animal feed additives, in particular to a preparation method and application of an amino acid chelate. Background technique [0002] The trace element zinc is one of the essential trace elements for animals, and has been compared to the "life element" of animals. Since Todd et al. first confirmed that zinc is one of the trace elements necessary for animal nutrition through rat experiments in 1934, people gradually It was found that zinc is a component of more than 200 metalloenzymes, hormones and insulin in the animal body, which can promote the growth and development of the body and tissue regeneration, maintain the normal metabolism of the body, promote appetite, maintain normal sexual organs and sexual functions, and accelerate wound healing. Heals, protects skin health, strengthens immune mechanism, improves resistance. [0003] Amino acid chelated zinc is a chelated compound with a ring structure formed by re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C227/14C07C229/76A23K20/142A23K50/30A23K50/75
CPCA23K20/142A23K50/30A23K50/75C07C227/14C07C229/76
Inventor 王赏初黄逸强向阳葵邓敏彭红星张亚伟苏军
Owner XINGJIA BIO ENG CO LTD
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