Method for maintaining the activity of zeolite catalysts

Details Method for maintaining the activity of zeolite catalysts Method for maintaining the activity of zeolite catalysts

B - Operations, Transporting

01

J

252/17, 260/606,

B01J 29/08 (2006.01) B01J 29/18 (2006.01) C07C 209/16 (2006.01) B01J 29/28 (1990.01)

Patent

CA 1332933

There is provided a method for maintaining the activity of a zeolite catalyst in the catalytic production of methylamines from methanol and ammonia using a zeolite catalyst as at least one of catalysts applied, which comprises controlling the amount of aldehyde compounds as impurities flowing into a zeolite catalyst layer to about 0.15 g/hr.kg-cat. or lower, as calculated in terms of formaldehyde.

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