METHOD FOR PRODUCING DICARBOXYLIC ACID DIESTER

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a dicarboxylic acid diester having a good hue from a dicarboxylic acid or a dicarboxylic acid anhydride and a low-quality raw material alcohol. SOLUTION: The method for producing the dicarboxylic acid diester comprises carrying out an esterification reaction of the dicarboxylic acid or its anhydride with the alcohol in the presence of an esterification catalyst. The method for producing the dicarboxylic acid diester is characterized as using the alcohol obtained by carrying out a flash treatment of the raw material alcohol. COPYRIGHT: (C)2006,JPO&NCIPI