Production of methylamines
AssigneeNitto Kagaku Kogyo Kabushiki Kaisha
InventorsTakeyuki Fujita, Kiyonobu Niwa, Kazumoto Ogura, Michio Fukatsu
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Abstract
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.
Claims13
In a process for producing methylamines, comprising contacting methanol and ammonia or methanol a mixture of methylamines and ammonia, or a mixture of methylamines and ammonia, in a gaseous phase, with a bed of a zeolite catalyst, the improvement which comprises the use of the zeolite catalyst such that the catalyst bed is divided into two or more sub-beds connected in series and/or parallel, 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.
Dependencies are inferred from the claim text.