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Soluble zinc citrate preparation method

A technology of zinc citrate and citric acid, which is applied in the field of biochemical medicine and food, and can solve problems such as difficult absorption and limited use

Inactive Publication Date: 2012-01-25
SHANDONG HENGTONG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In today's biochemical, pharmaceutical and food markets at home and abroad, zinc supplementation drugs are commonly used to treat dysplasia, mental retardation, colds and other diseases, and the ingredients of zinc supplementation drugs are mostly dihydrate Zinc citrate, English name: Zinc Cirate, molecular formula: (C6H5O7)2Zn 3 , molecular content: 610.37, zinc content: 31.29%, because it is slightly soluble in water, it is not easily absorbed by humans and animals, and its use is restricted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: Mix citric acid, zinc oxide, and water in a ratio of 3:2:1; put them into a reactor at a temperature of 40 degrees after mixing, start the chemical reaction for 70 minutes; stop for 30 minutes, and the chemical reaction is mature; Start the machine for 40 minutes to release soluble zinc citrate at the crystallization temperature; filter, dry and pack the finished product.

[0013] The inspection of the finished product is uniform and qualified,

[0014] The specific test results are:

[0015] project index result Zinc citrate% ≥98.5 99.3 acidity meet the requirements meet the requirements Loss on drying % ≤6.5 3.0 Alkalinity meet the requirements meet the requirements Iron salt% ≤0.005 ＜.0005 Lead salt % ≤.0001 ＜0.001 Arsenic salt% ≤0.0002 ＜0.0002

Embodiment 2

[0016] Example 2: Mix citric acid, zinc oxide, and water in a ratio of 3:2:1; put them into a reactor at a temperature of 50 degrees after mixing, and start the chemical reaction for 60 minutes; stop for 40 minutes, and the chemical reaction is mature; Start the machine for 50 minutes to release soluble zinc citrate at the crystallization temperature; filter, dry and pack the finished product.

[0017] The inspection of the finished product is uniform and qualified.

[0018] Soluble Zinc citrate can be made into chewable tablets, tablets, granules, capsules, oral liquids, and injections according to actual conditions, and should be sealed and stored in a dry and cool place away from light.

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PUM

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Abstract

The invention relates to a soluble zinc citrate preparation method in the biochemical drug and food field. The technical scheme is that the method comprises the following steps of: evenly mixing citric acid, zinc oxide and water according to proportions of 3:2:1; after even mixing, putting the mixture into a reaction kettle at temperature being 40-60 DEG C and starting up for chemical reaction for 60-70 minutes; shutting down for 30-40 minutes to ensure mature chemical reaction; starting up for 40-50 minutes and discharging soluble zinc citrate at crystallization temperature; and filtering, drying and packaging finished products. The soluble zinc citrate preparation method has the beneficial effects that the compounded soluble zinc citrate with the molecular formula being Zn3 (C6H5O7) 23H2O and molecular mass being 628.42 is white crystallized powder, contains 60.20 percent of citric acid, 31.21 percent of zinc and 8.59 percent of crystallization water, is soluble zinc and can be used for replenishing zinc to cure hypogenesis, hypophrenia and illness of easily catching a cold, the zinc can be easily absorbed by human and animals, and the application of soluble zinc citrate injections and zinc citrate oral liquid is not limited by insoluble zinc citrate.

Description

technical field [0001] The invention relates to a preparation method of soluble zinc citrate in the field of biochemical industry, medicine and food. Background technique [0002] In today's biochemical, pharmaceutical and food markets at home and abroad, zinc supplementation drugs are commonly used to treat dysplasia, mental retardation, colds and other diseases. The composition of zinc supplementation drugs is mostly zinc citrate dihydrate, English name: Zinc Cirate, molecular formula: (C 6 h 5 o 7 ) 2 Zn 3 , Molecular content: 610.37, zinc content: 31.29%, because it is slightly soluble in water, it is not easy for human body and animals to absorb, and its use is limited. Contents of the invention [0003] The object of the present invention is to provide a method for preparing soluble zinc citrate that has high solubility and is easily absorbed by humans and animals. [0004] Technical solution: consists of the following steps: [0005] Raw materials and ratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C59/265C07C51/41
Inventor 王元达
Owner SHANDONG HENGTONG BIOTECH
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