Method for producing edible grade EDTA disodium

A food-grade, sodium carbonate technology, applied in applications, food preparation, food science, etc., can solve the problems of not meeting the requirements of food grade, high requirements for reaction conditions, and high requirements for three-waste treatment, achieving high temperature and low risk factor , The effect of small investment in equipment
CN1561822AInactive Publication Date: 2005-01-12广州市微生物研究所
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
广州市微生物研究所
Publication Date
2005-01-12
Estimated Expiration
Not applicable · inactive patent
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Abstract

A method for producing edible EDTA-2Na includes neutralizing reaction between chloroacetic acid and sodium carbonate, condensing reaction on ethyldiamine, using acid to regulate acidity to obtain EDTA, and reaction on sodium hydroxide to obtain EDTA-2Na.
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Description

technical field

[0001] The invention relates to a food grade disodium EDTA, in particular to a method for producing food grade disodium EDTA. Background technique

[0002] Disodium EDTA, first discovered in Germany, is an excellent chelating agent that can strongly chelate metal ions in the aqueous phase. It is widely used in complexing agents, food additives, detergents, stabilizers, fiber processing aids, cosmetic additives, blood anticoagulants, bleaching and fixing solutions for color photosensitive materials, dyeing aids, synthetic rubber polymerization initiation And heavy metal quantitative analysis reagents and so on.

[0003] Disodium EDTA is mainly used in food processing to complex harmful metal ions to improve food quality and stability. Color additive, used in canned aquatic products to prevent the formation of "struvite" (sodium ammonium phosphate) glass crystals, and can be used in combination with acid-type preservatives such as pota...

Claims

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