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Production method of magnesium citrate/magnesium oxide composite product

A composite product, magnesium citrate technology, applied in the separation/purification of magnesium oxide and carboxylic acid compounds, chemical instruments and methods, etc., can solve the problems of difficulty in increasing magnesium content, single product specifications of magnesium citrate, etc., and achieve crystallinity Good, the effect of expanding the scope of application

Active Publication Date: 2020-09-18
连云港东泰食品配料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a kind of production method of magnesium citrate / magnesium oxide composite product in order to overcome above-mentioned deficiency of background technology, the magnesium content in the gained magnesium citrate / magnesium oxide composite product can reach 30~35%, has solved magnesium citrate The product specification is single and the magnesium content is difficult to increase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 500L of food-grade citric acid monohydrate solution with a mass concentration of 10% into a 1000L reactor, heat the jacket to 50°C with steam, then add 60L of food-grade magnesium oxide slurry with a mass concentration of 15% in the reactor, The reaction temperature was controlled at 60° C., the reaction time was 4 hours, and the pH at the end of the reaction was 7.0.

[0024] After the reaction, concentrate the reaction solution until the crystals are precipitated, continue to add food-grade magnesium oxide until the crystal concentration is 45%, after solid-liquid separation, control the temperature at 150°C and dry for about 6 hours to obtain a magnesium citrate / magnesium oxide composite product. The magnesium content of the product is 31.5%.

Embodiment 2

[0026] Add 500L of food-grade citric acid monohydrate solution with a mass concentration of 20% into a 1000L reactor, heat the jacket to 60°C with steam, and add 200L of food-grade magnesium oxide slurry with a mass concentration of 10% into the reactor. The reaction temperature was controlled to be 80° C., the reaction time was 2 hours, and the pH at the end of the reaction was 6.5.

[0027] After the reaction, concentrate the reaction solution until crystals are separated out, continue to add food-grade magnesium oxide until the crystal concentration is 50%, after solid-liquid separation, control the temperature to be 120°C and dry for about 8 hours to obtain a high magnesium content magnesium citrate product, the product magnesium content reaches 33%.

Embodiment 3

[0029] Be that 15% food-grade citric acid monohydrate solution 500L is added in the 1000L reaction kettle with a mass concentration of 15%. The reaction temperature was 75° C., the reaction time was 3 hours, and the pH at the end of the reaction was 8.0.

[0030] After the reaction, concentrate the reaction solution until crystals are precipitated, continue to add food-grade magnesium oxide until the crystal concentration is 60%, after solid-liquid separation, control the temperature to be 125°C and dry for about 8 hours to obtain a high magnesium content magnesium citrate product, the product magnesium content reaches 34.5%.

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Abstract

The invention belongs to the field of inorganic chemical synthesis, and discloses a production method of a magnesium citrate / magnesium oxide composite product. The production method of the magnesium citrate / magnesium oxide composite product comprises the following steps of (1) adding a citric acid monohydrate solution with the mass concentration of 10-20% into a reaction kettle, performing heatingto 50-60 DEG C, adding magnesium oxide slurry with the mass concentration of 10-20% into the reaction kettle, and controlling the pH value of the reaction end point to 6-8; and (2) after the reactionin the step (1) is finished, performing concentrating on the reaction solution until crystals are separated out, continuously adding magnesium oxide until the crystal concentration is 40-60%, carrying out solid-liquid separation, and performing drying for 6-8 hours to obtain the magnesium citrate / magnesium oxide composite product. The magnesium content of the magnesium citrate / magnesium oxide composite product obtained by the method can reach 30-35%, and the problems of single specification and difficulty in increasing the magnesium content of the magnesium citrate product are solved.

Description

technical field [0001] The invention relates to the field of inorganic chemical synthesis, in particular to a production method of a magnesium citrate / magnesium oxide composite product. Background technique [0002] Magnesium citrate, also known as citric acid or magnesium salt, is a white or slightly yellow powder formed from magnesium carbonate and citric acid, non-toxic and non-corrosive. Magnesium citrate is a chemical preparation with medicinal value. Its magnesium content is usually as high as 11%. Since magnesium is easily absorbed by the body, it is often used as a health supplement and is a very important magnesium nutrient. Supplementary sources. [0003] The most common medical use of magnesium citrate is as a saline laxative. Before any surgery, the patient is given magnesium citrate to facilitate bowel emptying. This is because magnesium citrate has a tendency to absorb tissue water, and when injected into the intestinal tract, it can absorb a large amount of...

Claims

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Application Information

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IPC IPC(8): A23L33/16C07C51/41C07C59/265C07C51/43
CPCA23L33/16C07C51/412C01F5/02C07C51/43A23V2002/00A23V2250/161C07C59/265
Inventor 卞其华杨威周洺阳舒峰纪玉英
Owner 连云港东泰食品配料有限公司
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