A CATALYST FOR PRODUCING ALPHA BETA-UNSATURATED CARBOXYLIC ACID, A METHOD FOR PRODUCING THE SAME AND A METHOD FOR PRODUCING ALPHA, BETA-UNSATURATED CARBOXYLIC ACID

摘要

The present invention relates to a catalyst for producing an alpha,beta-unsaturated carboxylic acid through liquid-phase oxidation of an olefin or an alpha,beta-unsaturated aldehyde, wherein palladium with an average particle diameter in the range of 1 to 8 nm is supported on a carrier for the palladium with a total pore volume of 0.40 to 1.50 cc/g as measured by nitrogen gas absorption method. The invention also relates to a method of producing the catalyst and to a method of producing the carboxylic acid with the said catalyst.