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32 results about "Monosodium citrate" patented technology

Monosodium citrate, more correctly, sodium dihydrogen citrate (Latin: natrium citricum acidulatum), is an acid salt of citric acid. Disodium citrate and trisodium citrate are also known. It can be prepared by partial neutralisation of an aqueous solution of sodium bicarbonate or carbonate with citric acid.

Preparation method and preparation system of monosodium citrate anhydrous

The invention provides a preparation method and a preparation system for sodium dihydrogen citrate. The preparation method comprises the following steps: taking sodium citrate and citric acid as reaction raw materials, successively passing the raw materials through a neutralization tank for a neutral reaction, adjusting a pH value to 2.6 to 2.8 and filtering; enabling filtrate to enter a concentrating tank, keeping the temperature of the concentrating tank at 60 to 80 DEG C and carrying out crystallization reaction for 5 to 6 hours; after the crystallization reaction ends, carrying out solid-liquid separation by using an automatic centrifuge; enabling a crystal to directly enter a vibrating fluidized bed drier, drying at the temperature of 70 to 80 DEG C for 2 to 3 minutes, and removing surface water to directly obtain the sodium dihydrogen citrate; then crushing with a pulverizer and sieving through a 60-mesh sieve, thus obtaining a finished product. The invention further provides thepreparation system for the sodium dihydrogen citrate prepared according to the preparation method. According to the preparation method and the preparation system for the sodium dihydrogen citrate, disclosed by the invention, the sodium citrate and the citric acid are taken as the reaction raw materials, stable reaction and low heat release are realized; crystallization reaction time and drying time can be shortened, production cost can be reduced and production efficiency is improved.
Owner:NINGXIANG XINYANG CHEM
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