Title:
METHOD FOR PRODUCING TAURINE AND METHOD FOR REMOVING IMPURITY FROM REACTION SYSTEM FOR PRODUCING TAURINE
Document Type and Number:
WIPO Patent Application WO/2020/258542
Kind Code:
A1
Abstract:
Provided is a method for producing taurine including: providing a reaction solution comprising alkali metal taurinate and/or alkali metal isethionate, passing at least a portion of the reaction solution through a column of basic anion exchange resin, adsorbing alkali metal taurinate and/or alkali metal isethionate to the basic anion exchange resin, and collecting an eluate comprising at least one impurity, desorbing alkali metal taurinate and/or alkali metal isethionate from the basic anion exchange resin with an alkaline solution, and collecting a desorption liquid comprising alkali metal taurinate and/or alkali metal isethionate, subjecting the desorption liquid comprising alkali metal taurinate to acidification or subjecting the desorption liquid comprising alkali metal isethionate to aminolysis and acidification, thereby obtaining taurine.
Inventors:
SUN HUAJUN (CN)
PENG HONGBO (CN)
JIANG RUYONG (CN)
GUO CHEN (CN)
QIAN ZHIQIANG (CN)
PENG HONGBO (CN)
JIANG RUYONG (CN)
GUO CHEN (CN)
QIAN ZHIQIANG (CN)
Application Number:
PCT/CN2019/106760
Publication Date:
December 30, 2020
Filing Date:
September 19, 2019
Export Citation:
Assignee:
HUBEI GRAND LIFE SCIENCE AND TECH CO LTD (CN)
International Classes:
C07C303/44; C07C303/22; C07C309/14
Foreign References:
| US2693488A | 1954-11-02 | |||
| CN107056659A | 2017-08-18 | |||
| CN110483342A | 2019-11-22 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
Download PDF: