Zhejiang Nhu Company Ltd.

Shangyu Nhu Bio-Chem Co. Ltd

Zhejiang Nhu Pharmaceutical Co., Ltd.

Zhejiang University

Junhua Peng

Xiaoxiang He

Songhua Xu

Xianghua Yao

Zhirong Chen

Lei Wang

Yinbing Wang

Xiang Fang

Xiaodong Wu

Lihuan Cheng

Yinjiang Song

Yingxia Pan

A method for preparing sodium taurine as a taurine intermediate is provided in the present disclosure. The method comprises the following steps: providing sodium hydroxyethyl sulfonate and an ammonia source; and placing the sodium hydroxyethyl sulfonate and the ammonia source in an aminolysis reactor for an aminolysis reaction to obtain a mixture containing sodium taurine as a taurine intermediate, wherein the molar ratio of ammonia in the ammonia source to the sodium hydroxyethyl sulfonate is greater than or equal to 25:1. A method for preparing taurine is further provided.

Method for preparing sodium taurate as taurine intermediate, and method for preparing taurine

The present disclosure relates to a method for preparing taurine and a method for recovering a mother liquor thereof. The method for recovering the taurine mother liquor comprises: providing a taurine mother liquor, and mixing the taurine mother liquor and a treating agent to obtain a solid-containing suspension, wherein the treating agent is a water-soluble organic solvent or a mixture of the water-soluble organic solvent and water; filtering the suspension to obtain a first solid product and a first filtrate; and dissolving the first solid product with an ammonia source, and then filtering same to obtain a second solid product and a second filtrate.

Method for preparing taurine and method for recovering mother liquor thereof

Growing community of inventors

Zhejiang, China

Junhua Peng