METHOD FOR PRODUCING DICHLOROHYDRIN

摘要

PROBLEM TO BE SOLVED: To reduce the amount of an alkali required in a subsequent dehydrochlorination process and the amount of water and a salt formed in the dehydrochlorination process by efficiently recovering hydrogen chloride from the resulting reaction mixture in the process of producing dichlorohydrin by way of chlorinating glycerin. SOLUTION: It has been discovered that the above problem can be solved by separating and recovering hydrogen chloride gas by way of heating at least a part of the reaction mixture comprising dichlorohydrin, hydrogen chloride and water obtained by chlorinating glycerin. COPYRIGHT: (C)2010,JPO&INPIT