Mitsubishi Petrochemical Company Limited

Ryozo Hamana

Tadamichi Aoki

Shoichiro Mori

Tadashi Ayusawa

Masashi Inaba

Yutaka Nomura

Tatsuro Ashizawa

Hideyuki Hase

Aromatic alcohol is produced by reducing aromatic hydroperoxide with hydrogen in a liquid phase, using a Pt catalyst solely or a catalyst containing Pt and at least one element selected from the group consisting Pb, Sn, Cu, As, Sb, In, Se and Bi in a fixed bed reactor.

Method for producing aromatic alcohol

A process for the production of piperidine by catalytic hydrogenation of furfurylamine and/or tetrahydrofurfurylamine in the presence of a hydrogenation catalyst by flowing hydrogen gas into a reaction zone, wherein the starting material is introduced into a liquid phase in the reaction zone, the liquid phase being maintained at a constant temperature, and the reaction product is withdrawn from the reaction zone in a gaseous form together with excess hydrogen gas.

Process for the production of piperidine

A process for producing furfurylamine and/or tetrahydrofurfurylamine in a high yield is disclosed, which comprises subjecting a mixture of furfural and a primary amine to a liquid-phase catalytic hydrogenation using a hydrogenation catalyst in the presence of ammonia, wherein the primary amine is furfurylamine and/or tetrahydrofurfurylamine and the hydrogenation catalyst is selected from the group consisting of cobalt-based catalysts and nickel-based catalysts.

Process for producing furfurylamine and/or tetrahydrofurfurylamine

Catalytic hydrogenation of furfurylamine or tetrahydrofurfurylamine in the presence of a cobalt-based catalyst into piperidine can be industrially carried out in an organic solvent, wherein addition of ammonia is not needed. It has been believed heretofore that the presence of ammonia in the hydrogenation is essential in such catalytic hydrogenation.

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Ibaraki, Japan

Ryozo Hamana