SODIUM TAURATE PREPARATION METHOD

WIPO Patent Application WO/2021/128220

A1

The present invention provides a sodium taurate preparation method, comprising: dissolving sodium hydroxyethyl sulfonate and a raw material sodium taurate into a guanidyl-containing ionic liquid to undergo a reaction to obtain an ionic liquid solution containing a mixed product of sodium ditaurate and sodium tritaurate, introducing liquid ammonia into the ionic liquid solution of the mixed product to undergo a reaction to obtain an ionic liquid solution of the product sodium taurate, adding the ionic liquid solution of the product sodium taurate into an alcohol solvent for elution, and separating out the obtained precipitated solid to obtain the product sodium taurate. The sodium taurate preparation method of the present invention is high in product yield, good in purity, high in raw material utilization rate, simple and convenient in process and mild in reaction condition, the production efficiency of sodium taurate can be greatly improved, and the production costs are reduced, so that the sodium taurate preparation method has a good industrial application prospect.

JPH09503962	INDUSTRIAL APPLICABILITY: A method for separating a solute from another solute.
JPS5780362	FORMALDEHYDE CONDENSATE, MANUFACTURE, USE AS DISPERSING AGENT AND COMPOSITION CONTAINING SAME

CHEN LAIZHONG (CN)
ZHONG ZITAI (CN)
ZHANG JING (CN)
GUI ZHENYOU (CN)
ZHANG YONGZHEN (CN)
LI YUAN (CN)
FENG MAOYING (CN)
WANG WEN (CN)

PCT/CN2019/128903

July 01, 2021

December 26, 2019

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WANHUA CHEMICAL GROUP CO LTD (CN)

C07C303/22; C07C309/14; C07C309/15

WO2018026396A1

2018-02-08

CN109535043A	2019-03-29
CN108314633A	2018-07-24
CN105732440A	2016-07-06
US20150299114A1	2015-10-22

SINO-CREATIVITY INTELLECTUAL PROPERTY LAW FIRM (CN)

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