The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2024
Filed:
Mar. 14, 2022
Qianjiang Yongan Pharmaceutical Co., Ltd., Hubei, CN;
Yong Chen, Qianjiang, CN;
Xiquan Fang, Qianjiang, CN;
Shaobo Li, Qianjiang, CN;
Feng Liu, Qianjiang, CN;
QIANJIANG YONGAN PHAMACEUTICAL CO., LTD., Qianjiang, CN;
Abstract
The present disclosure relates to a method for recycling a taurine mother liquor, which includes: adding a base to the taurine mother liquor, heating to a first temperature, carrying out a hydrolysis reaction, removing ammonia produced, and evaporating and concentrating the ammonia-removed solution to obtain an alkali metal hydroxyethyl sulfonate solution. When applying the method provided by the present disclosure for the recycling of the taurine mother liquor, the taurine mother liquor can be further converted into the alkali metal hydroxyethyl sulfonate solution, impurities are removed from the obtained alkali metal hydroxyethyl sulfonate solution, the impurity-removed alkali metal hydroxyethyl sulfonate solution is concentrated and crystallized, and the alkali metal hydroxyethyl sulfonate is separated out. The method provided by the present disclosure is an efficient and simple method for recycling the taurine mother liquor, which is very easy to implement industrially and can effectively recycle the taurine mother liquor.