PRODUCTION OF ORGANIC DICARBOXYLIC ESTER

摘要

PROBLEM TO BE SOLVED: To provide a process for simply and efficiently producing organic dicarboxylic esters of industrially excellent quality by using a reduced amount of alcohol. SOLUTION: In the esterification reaction between an organic dicarboxylic acid of the general formula I: HOOC-R<1> -COOH and a monohydric alcohol of the general formula II: HO-R<2> -OH in the presence of a solid acid catalyst through the continuous flow reactor system, the organic dicarboxylate ester as the esterification reaction product is kept together with these reactants of the organic dicarboxylic acid and the monohydric alcohol to homogenize their mixture followed by esterification thereby producing the objective organic dicarboxylic ester of the general formula III:R<2> OOC-R<1> -COOR<2> (R<1> is a 6-14 C straight of branched hydrocarbon; R<2> is a 1-4 C straight or branched hydrocarbon).