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Preparation method and application of calcium glycerophosphate

A technology of calcium glycerophosphate and glycerophosphate, applied in the directions of application, chemical instruments and methods, phosphorus organic compounds, etc., can solve the problems of no way to recycle the mother liquor, no way to industrialize production, low recovery rate of organic solvents, etc. Moderate performance, low equipment requirements, good absorption and utilization

Active Publication Date: 2021-03-19
XINGJIA BIO ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some shortcomings when this method is applied to large-scale production: 1. The whole process is relatively complicated, and the requirements for equipment are relatively high
2. In the reaction, acetone needs to be used to protect glycerin, and then deprotection is required. Acetone recovery is complicated
4. There is no way to recycle the mother liquor, and some areas clearly cannot discharge waste water, so there is no way to carry out industrial production
5. There are many operating procedures, long time, low recovery rate of organic solvent and high cost

Method used

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  • Preparation method and application of calcium glycerophosphate
  • Preparation method and application of calcium glycerophosphate
  • Preparation method and application of calcium glycerophosphate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A preparation method of calcium glycerophosphate, comprising the steps of:

[0047] Turn on stirring, at 10m 3 Add 4t of water into the reaction kettle, add 925.6kg of sodium glycerophosphate with a purity of 98%, stir and dissolve, then add 467.4kg of calcium chloride with a purity of 95%, and after heating up to 50°C, use glutamic acid to control the pH throughout the process value to 10, stirred and reacted for 1.5h to make it fully reacted, filtered while hot, washed several times to desalinate, added 4% of wet material weight modified starch, granulated, and then dried in a fluidized bed to obtain glycerol phosphate The calcium product is about 844kg. Then screen out 5-10 mesh products (products with unqualified mesh number, re-grind and add to the next batch of wet materials for granulation).

Embodiment 2

[0049] A preparation method of calcium glycerophosphate, comprising the steps of:

[0050] Turn on stirring, at 5m 3 Add 2t of water into the reaction kettle, add 1.02t of potassium glycerophosphate with a purity of 98%, stir and dissolve, then add 467.4kg of calcium chloride with a purity of 95%, after heating up to 80°C, use glutamic acid to control the pH throughout the process When the value reaches 8.1, stir and react for 40 minutes to make it fully react, filter while hot, add 7% dextrin of wet material weight, granulate, and then dry in a fluidized bed to obtain about 931kg of calcium glycerophosphate product. Then screen out 80-120 mesh products (products with unqualified mesh number, re-grind and add to the next batch of wet materials for granulation).

Embodiment 3

[0052] A preparation method of calcium glycerophosphate, comprising the steps of:

[0053] Turn on stirring, at 5m 3 Add 1.5t of the mother liquor in Example 1 in the reaction kettle, add 863.9kg sodium glycerophosphate with a purity of 98%, after stirring and dissolving, add 467.4kg of calcium chloride with a purity of 95%, and heat up to 100°C. Control the pH value of glutamic acid to 7 throughout the whole process, stir and react for 10 minutes to make it fully react, filter while it is hot, add 10% cyclodextrin by weight of wet material, granulate, and then dry in a fluidized bed to obtain calcium glycerophosphate The product is about 1.5t. Then screen out 30-60 mesh products (products with unqualified mesh number, re-grind and add to the next batch of wet materials for granulation).

[0054] The mother liquor contains calcium glycerophosphate and sodium chloride, which are recycled for the next batch of reactions; the number of times of recycling is not limited.

[005...

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Abstract

The invention discloses a preparation method of calcium glycerophosphate, and the method comprises the following steps of: adding calcium chloride into water while stirring, adding glycerophosphate, performing heating for reaction, and controlling the pH value with glutamic acid in the reaction process; and after the reaction is completed, carrying out solid-liquid separation while hot, and performing drying to obtain calcium glycerophosphate. The invention also provides application of the calcium glycerophosphate prepared by the preparation method in the field of animal feed additives. The preparation method disclosed by the invention has the advantages of simple process, convenient operation, low cost, product safety, low equipment requirement, recyclable mother liquor and the like, andis suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of feed additive materials, and in particular relates to a preparation method and application of a calcium-phosphorus compound. Background technique [0002] Calcium and phosphorus have a wide range of biological functions in animals. The common symptoms of deficiency are: decreased appetite, pica; slowed growth, decreased productivity and feed utilization rate; bone abnormalities, etc. Typical calcium and phosphorus deficiencies in animals include rickets, osteoporosis, and postpartum paralysis. Calcium and phosphorus can be absorbed synergistically, improving the utilization rate of calcium and phosphorus in animals. [0003] Calcium glycerophosphate is white or slightly yellow crystalline powder, odorless, almost odorless, slightly bitter taste, slightly hygroscopic in the air, loses crystal water at 130°C to form anhydrous, and decomposes above 170°C. It is more soluble in water when the temperature is lower. Th...

Claims

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Application Information

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IPC IPC(8): C07F9/09A23K20/142A23K20/24A23K20/26A23K50/10A23K50/30A23K50/75
CPCC07F9/091A23K20/26A23K20/24A23K20/142A23K50/30A23K50/75A23K50/10
Inventor 向阳葵陈娟彭红星段瑞刘伟苏军
Owner XINGJIA BIO ENG CO LTD
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