METHOD FOR PRODUCING HYDROGENATED AROMATIC CARBOXYLIC ACID

摘要

PROBLEM TO BE SOLVED: To provide a method for producing the objective hydrogenated aromatic carboxylic acid by using an aromatic carboxylic acid having low melting point and low solubility to solvent as a raw material and continuously reacting in the presence of a solid catalyst in high efficiency. SOLUTION: A slurry is prepared from an aromatic carboxylic acid and a solvent, the slurry is continuously supplied to a reactor to carry out hydrogenation reaction in the presence of a solid catalyst, the reaction liquid is continuously extracted from the reactor and at least a part of the extracted reaction liquid is returned to the reactor to perform the hydrogenation reaction while keeping the aromatic carboxylic acid in a state substantially completely dissolved in the reactor.