Method to recover organic tertiary amines from waste sulfuric acid employing a plug flow reactor

摘要

The present invention describes a method to recover an organic tertiary amine from waste sulfuric acid comprising the following steps:
a) reacting in a plug flow reactor at a pressure ranging from 1.5 to 12 bar
i) waste sulfuric acid comprising organic tertiary amines with
ii) ammonia; and
b) separating the organic tertiary amine from the reaction mixture obtained in step a).