Process for producing cyclohexanone compound

摘要

The invention has an object of providing an economical and highly efficient process for producing a cyclohexanone compound such as cyclohexanone. An aspect of the invention resides in a process for producing a cyclohexanone compound by performing hydrogenation reaction of a phenol compound in a gas phase in the presence of a palladium catalyst supported on a carrier to produce the corresponding cyclohexanone compound, wherein the hydrogenation reaction is carried out in the presence of at least one nitrogen compound selected from ammonia, amine compounds and heteroaromatic compounds.

主权项

1. A process for producing a cyclohexanone compound by performing hydrogenation reaction of a phenol compound in a gas phase in the presence of a palladium catalyst supported on a carrier to produce the corresponding cyclohexanone compound, wherein the hydrogenation reaction is carried out in the presence of at least one nitrogen compound selected from ammonia, amine compounds and heteroaromatic compounds,
wherein the nitrogen compound is free from a structure formed by the bonding of a hydrogen atom to a nitrogen atom, wherein the palladium catalyst supported on the carrier further includes at least one metal element selected from lithium, sodium, potassium, magnesium, calcium and barium, and wherein the palladium catalyst supported on the carrier is obtained by impregnating the supported palladium catalyst still free from any alkali metal and/or alkaline earth metal compounds with an aqueous solution of hydroxides, nitrate salts, acetate salts or carbonate salts of at least one metal element selected from lithium, sodium, potassium, magnesium, calcium or barium, followed by drying or calcination.