Document Type and Number:
Japanese Patent JPS5726255
Kind Code:
B2
Abstract:
Production of alpha -chloroacrylic acid. Acrylic acid and chlorine gas are intimately contacted with one another and the resulting crude reaction product, which predominantly consists of 2,3-dichloropropionic acid, is separated into alpha -chloroacrylic acid and hydrogen chloride. To this end, the reaction produce is introduced into a catalyst zone heated to 80 DEG - 160 DEG C and containing one or more known dehydrochlorination catalysts, wherein alpha -chloroacrylic acid is continuously distilled off under pressures between 10 and 100 mm of mercury.
Application Number:
JP9285573A
Publication Date:
June 03, 1982
Filing Date:
August 18, 1973
Export Citation:
International Classes:
C07C51/00; C07C51/363; C07C51/377; C07C57/54; C07C67/00