Patent ID: 6696598
Filing Date: 2004-02-24
Classification: B01D,C07C

Abstract:
A process for producing lower aliphatic carboxylic acid ester, comprising reacting a lower aliphatic carboxylic acid and a lower olefin in a gas phase in the presence of an acid catalyst, wherein the production process comprises the following first and second steps:First step: a step of separately feeding a lower alcohol corresponding to a hydrate of the lower olefin to the reaction product containing a lower aliphatic carboxylic acid after the gas phase reaction and thereby obtaining a reaction product having added thereto a lower alcohol; and Second step: a step of condensing the lower aliphatic carboxylic acid and the lower alcohol in the reaction product having added thereto a lower alcohol, obtained in the first step, and while allowing the conversion into a lower aliphatic carboxylic acid ester to proceed, separating the lower carboxylic acid ester.