A process for preparing high-purity calcium glycinate by electrochemical-complexation reaction technology

A calcium glycinate complexation reaction technology, which is applied in the preparation of cyanide reaction, the preparation of organic compounds, organic chemistry, etc., can solve the problems of difficult control and high reaction temperature, and achieve the effect of reducing production cost and efficient comprehensive utilization

Active Publication Date: 2021-08-31
GUANGXI ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reaction temperature is high and difficult to control

Method used

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  • A process for preparing high-purity calcium glycinate by electrochemical-complexation reaction technology
  • A process for preparing high-purity calcium glycinate by electrochemical-complexation reaction technology
  • A process for preparing high-purity calcium glycinate by electrochemical-complexation reaction technology

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] First of all, the reaction device is installed according to the process flow chart, and the anode chamber is isolated from the complexation chamber by the cation exchange membrane, and the cathode chamber is isolated from the complexation chamber by the anion exchange membrane to form an electrochemical-complexation reaction system. The complexation chamber Between the anode chamber and the cathode chamber.

[0051] Glycine and accelerator (sodium glycinate) are mixed evenly according to the molar ratio of 1:0.5 to prepare a mixed complexing agent, and the feed rate of the mixed complexing agent is reasonably adjusted according to the pH value of 10 in the complexing chamber; the concentration is 2mol Calcium chloride solution and 5% sodium hydroxide solution of / L are respectively used as anolyte and catholyte, and the electric field voltage is 36v direct current voltage, temperature control is 40 ℃ in the complexation chamber, the preparation obtains calcium glycinate ...

Embodiment 2

[0053] React according to embodiment 1 apparatus. Glycine and accelerator (sodium hydroxide) are mixed evenly according to the molar ratio of 1:1.0 to prepare mixed complexing agent, and the feed rate of mixed complexing agent is reasonably adjusted according to the pH value of 13 in the complexing chamber; Calcium chloride solution and 20% sodium hydroxide solution of 6.7mol / L are used as anolyte and catholyte respectively, and electric field voltage is 8v DC voltage, temperature control is 20 ℃ in the complexing chamber, and the preparation obtains calcium glycinate solution, Pass it into an alcohol elution tower and elute with a water-alcohol ratio of 1:5 as the eluent to precipitate a white precipitate, calcium glycinate, and then dry it in a low-temperature vacuum at -10°C and 15 Pa to obtain a white calcium glycinate powder.

Embodiment 3

[0055] React according to embodiment 1 apparatus. Mix glycine and accelerator evenly according to the molar ratio of 1:0.5, and the accelerator is sodium glycinate:sodium hydroxide=1:1 to prepare a mixed complexing agent, and adjust the mixed complexing agent reasonably according to the pH value of 12 in the complexing chamber The feeding rate of mixture; Be that the calcium chloride solution of 3.5mol / L and 10% sodium hydroxide solution are respectively used as anolyte and catholyte with concentration, and in the complexing chamber, the electric field voltage is 15v DC voltage, and the temperature control is Prepare the calcium glycinate solution at 30°C, pass it into the alcohol elution tower and elute it with a water-alcohol ratio of 1:2 as the eluent, and precipitate a white precipitate calcium glycinate crystallization, and then pass it through -20°C, 10Pa low-temperature vacuum Dry to obtain white calcium glycinate powder.

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Abstract

The present invention proposes a process for preparing high-purity calcium glycinate by electrochemical-complexation reaction technology. The process uses calcium chloride solution with low added value as raw material, and utilizes a micro-electrolysis reaction system to form an alkaline environment that is conducive to the complexation reaction. The conditions are: continuous reaction and complexation in the complexing chamber to form a calcium glycinate complex, and alcohol washing, separation and drying to obtain calcium glycinate. In the process, the preparation of stable concentration water-soluble calcium glycinate complex solution is mainly completed by controlling voltage, complexation temperature, pH value, reaction ratio, alcohol-water ratio and other conditions, and the controllable washing of calcium glycinate in the alcohol washing tower Separation and precipitation, and finally high-purity calcium glycinate powder is obtained by low-temperature drying.

Description

technical field [0001] The invention is applied in technical fields such as food processing, medicine, electrodialysis, chlor-alkali industry, etc., and is used for preparing high-purity calcium glycinate. Background technique [0002] A large number of studies have shown that after calcium is combined with glycine, before entering the cell, it must first pass through the calcium channel on the brush border cell membrane of the small intestine, and the calcium channel has strict requirements on the molecular size, and the molecular weight is less than 1500 to pass through. The smaller the molecular weight, the better , and glycine has the smallest molecular weight and can easily pass through calcium channels. The chemical structure of calcium glycinate is stable, not affected by gastric acid, oxalic acid, etc., and can be completely absorbed by the body. After absorption, calcium can be directly transported to specific target tissues and enzyme systems, greatly improving the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B3/13C25B3/20C25B9/19C25B13/02C07C227/18C07C227/40C07C227/42C07C229/76
CPCC25B13/02C07C227/18C07C227/40C07C227/42
Inventor 黄慨黄绍权黄志民顾传君黄华林
Owner GUANGXI ACAD OF SCI
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