公开(公告)号：US20020133041A1

公开(公告)日：2002-09-19

申请号：US10025988

申请日：2001-12-26

Applicant: ATOFINA

Inventor： Jean-Michel Paul ,  Patrick Busca

IPC: C07C069/52

CPC classification number: C07C67/08 ,  C07C69/54

Abstract: This process for preparing an unsaturated carboxylic ester by esterifying an unsaturated carboxylic acid with an alcohol in the presence of a cationic resin catalyst, the water of reaction being removed in the form of an azeotrope with the esterifying alcohol or with a solvent, is characterized in that the esterification reaction is conducted by passing the mixture of reactants in upflow mode through a bed (9) of the said cationic resin in a recirculation loop (2) which is combined with a stirred tank (1) in which the reactants are mixed and from which the water of reaction is removed azeotropically.

Abstract translation: 该方法通过在阳离子树脂催化剂的存在下将醇与不饱和羧酸酯化来制备不饱和羧酸酯，反应水与酯化醇或溶剂以共沸物形式除去，其特征在于 酯化反应是通过使反应物的混合物以升流模式通过所述阳离子树脂的床（9）在循环回路（2）中进行的，所述再循环回路（2）与其中混合有反应物的搅拌釜（1）结合， 从其中共沸除去反应水。