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Method for producing amino acid chelate iron

An amino acid and chelated iron technology, applied in the field of chelated iron, can solve the problems of increasing salt production and desalination processes, increasing the cost of high-content amino acid chelated iron, and high cost of desalination processes, and achieving reduced production costs, simple equipment, and wide The effect of the application foreground

Active Publication Date: 2013-01-30
HUNAN JIUDING TECH GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the increase of salt production and desalination process, especially the high cost of desalination process, the cost of high-content amino acid chelated iron is greatly increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 adopts the inventive method to produce amino acid chelated iron

[0022] Wash 1000 kilograms of feathers, 2000 kilograms of 30wt% concentrated hydrochloric acid, add 3000 liters of enamel reaction kettle, keep warm at 110-120 ° C, condense and reflux, react for 10 hours, release, and obtain amino acid hydrolysis solution. Dissolve 1,000 kg of anhydrous ferrous sulfate in 3,000 liters of water, stir and add 1,100 kg of ammonium bicarbonate, add 1 kg of iron powder, and filter to obtain a white ferrous bicarbonate precipitation intermediate, which is immediately stirred and added to the amino acid hydrolysis solution until the solution The pH value is 3.5, the amino acid separated from the filter part, and the filtrate is spray-dried under pressure at 280°C to obtain the product. Through infrared-nuclear magnetic detection, the obtained product is amino acid chelated iron, wherein the amino acid content is 48 wt%, and the iron content is 23 wt%.

Embodiment 2

[0023] Embodiment 2 adopts the inventive method to produce amino acid chelated iron

[0024] Wash 1000 kilograms of feathers, 1800 kilograms of 50wt% sulfuric acid solution, add 3000 liters of enamel reaction kettle, keep warm at 120-130 ℃ for 9 hours, and release to obtain amino acid hydrolysis solution. Dissolve 1,000 kg of anhydrous ferrous sulfate in 3,000 liters of water, stir and add 1,200 kg of sodium bicarbonate, add 1 kg of iron powder, and filter to obtain a white ferrous bicarbonate precipitation intermediate, which is immediately stirred and added to the amino acid hydrolysis solution until the solution The pH value is 3.3, the amino acid separated from the filter part, and the filtrate is spray-dried under pressure at 280°C to obtain the product. Through infrared-nuclear magnetic detection, the obtained product is amino acid chelated iron, wherein the amino acid content is 45 wt%, and the iron content is 22 wt%.

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Abstract

The invention relates to a method for producing amino acid chelate iron, and belongs to the field of chelate iron. The technical problem to be solved of the invention is to provide a low-cost method for producing amino acid chelate iron. The method for producing the amino acid chelate iron comprises the following steps: a, hydrolyzing keratin by using strong acid to obtain solution of amino acid; b, reacting carbonate and / or bicarbonate with solution of strong acid ferrite to obtain a precipitate, adding a proper amount of iron powder into the precipitate, then adding the solution of amino acid prepared by the step a into the mixture for reaction, and adjusting the pH value of the reacted solution to be 2.5 to 5.5; and c, filtering, then concentrating and drying the filter liquor to obtain the amino acid chelate iron. The method of the invention reduces the production cost of high-content amino acid chelate iron, has simple used device and few processing steps, fully meets the requirements of industrial big production, provides a new method for producing the high-content amino acid chelate iron, and has wide application prospect.

Description

technical field [0001] The invention relates to a method for producing amino acid chelated iron, belonging to the field of chelated iron. Background technique [0002] Amino acid chelated iron has a wide range of applications in health care products, food, feed, pesticides and other fields. Since ferrous oxide and ferrous carbonate do not exist in nature under normal circumstances, ferric oxide cannot be chelated with amino acids because it is ferric ion, and the substitution reaction time directly by iron filings and strong acid is too slow. Therefore, the current process for producing common amino acid chelated iron is: neutralize the hydrolyzed amino acid solution with sodium carbonate, sodium hydroxide, ammonium bicarbonate or ammonia water to neutrality, then add ferrous sulfate or ferrous chloride for chelation Get it together. But above-mentioned method additionally produces a large amount of salts such as sodium chloride, ammonium chloride, sodium sulfate or ammoni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C229/76C07C227/28C07C323/58C07C319/12C07C319/20C07D233/64C07C279/14C07C277/08C07D207/16
Inventor 李剑锋
Owner HUNAN JIUDING TECH GROUP
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