Title:
高純度タウリン及び塩の調製方法、及びシステム
Document Type and Number:
Japanese Patent JP7057819
Kind Code:
B2
Abstract:
The present disclosure discloses a method and system for preparing high-purity taurine and salt. According to the method, ethylene oxide reacts with bisulfite to generate isethionate, after an ammonolysis reaction is performed on the isethionate and ammonia as well as a metal salt, evaporation is carried out to obtain a taurine salt concentrated solution, the concentrated solution is subjected to ion exchange in an ion exchange system to obtain an adsorption solution with a main ingredient of taurine, the adsorption solution is separately collected, and the taurine is extracted from the adsorption solution; and adsorbed metal cations are eluted by an acid, the eluate is separately collected, and the salt is extracted from the eluate or the eluate is directly used as a salt solution product. According to the disclosure, advance separation of materials of two target products is completed after the ammonolysis reaction, and then the target products are separately extracted, so that an extraction process becomes very simple, interference brought to product separation when two target products are positioned in the same maternal system completely does not need to be considered, the process is simple, and the production cost is greatly reduced.
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Inventors:
Chen Young
Fun Kichan
Rishaobo
Ryu Feng
Fun Kichan
Rishaobo
Ryu Feng
Application Number:
JP2020218896A
Publication Date:
April 20, 2022
Filing Date:
December 28, 2020
Export Citation:
Assignee:
Chen Jiang Young An Pharmaceutical Company Limited
International Classes:
C07C303/22; C02F1/42; C07C303/44; C07C309/14
Domestic Patent References:
| JP2019025335A | ||||
| JP3188057A | ||||
| JP60092253A | ||||
| JP2017533883A | ||||
| JP2013535650A |
Foreign References:
| CN106699612A |
Other References:
LIN, R. et al.,Controlling the Size of Taurine Crystals in the Cooling Crystallization Process,Ind. Eng. Chem. Res.,2013年,Vol.52, No.37,pp.13449-13458,DOI:10.1021/ie4000807
Attorney, Agent or Firm:
Takahashi Hayashi & Partners
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