Method for preparing methylamines

Details Method for preparing methylamines Method for preparing methylamines

1993-10-06

1995-01-17

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

502 64, C07C20916

Patent

active

053826965

ABSTRACT:
A method for selectively preparing dimethylamine and monomethylamine, while the production of trimethylamine is inhibited to a sufficiently low level. The method comprises carrying out a gaseous reaction of methanol and ammonia by the use of a mordenite modified with a silylating agent by a silylation treatment in a liquid phase. According to the present invention, recycling trimethylamine is unnecessary, and the amount of steam or the like to be used can be decreased.

REFERENCES:
patent: 4683334 (1987-07-01), Bergna et al.
patent: 4752596 (1988-06-01), Bergna et al.
patent: 4918233 (1990-04-01), Deeba et al.
patent: 5137854 (1992-08-01), Segawa et al.
patent: 5210308 (1993-05-01), Segawa et al.

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