Method for producing taurine and method for removing impurity from reaction system for producing taurine

摘要

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 anions of alkali metal taurinate and/or alkali metal isethionate to the basic anion exchange resin, and collecting an eluate comprising at least one impurity, desorbing anions of 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.