Nitto Chemical Industry Co., Ltd.

Nitto Kagaku Kogyo Kabushiki Kaisha

Kazumoto Ogura

Takeyuki Fujita

Kiyonobu Niwa

Michio Fukatsu

Masaru Suto

Disclosed is an improvement in a process for catalytic production of methylamines from methanol and NH.sub.3, or methanol, a mixture of methylamines and NH.sub.3, or a mixture of methylamines and NH.sub.3, in a gaseous phase, over a bed of a zeolite catalyst, where the improvement is that the catalyst bed is divided into two or more sub-beds, and the difference between the inlet and outlet temperatures of each catalyst sub-bed is kept in the range of approximately 5.degree. C. to approximately 70.degree. C. while the reaction is carried out.

Production of methylamines

A process for producing dimethylformamide which comprises reacting methanol and ammonia to give methylamines, separating a dimethylamine-trimethylamine mixture from the methylamines, and reacting the dimethylamine-trimethylamine mixture with carbon monoxide to produce dimethylformamide.

Growing community of inventors

Tokyo-to, Japan

Kazumoto Ogura