PRODUCTION OF CARBOXYLIC ACID ESTER

摘要

PURPOSE:To suppress the side reaction due to reducing reaction, simultaneously achieve the miniaturization of a reactor and a purifier and stably and continuously carry out the reaction and the separation of a reactional product solution from a catalyst for a long period by shortening the separation residence time of the reactional product solution from the catalyst as much as possible. CONSTITUTION:The objective method for producing a carboxylic acid ester is to carry out the reaction in a suspension state and perform the separation by cross-flow type filtration in reacting an unsaturated aldehyde or an aromatic aldehyde with an alcohol in the presence of a solid catalyst and oxygen and producing a carboxylic acid ester so as to continuously and smoothly separate the reactional product solution from a concentrated catalyst slurry for a long period.