Selected chabazite zeolites as catalysts for conversion of...

Details Selected chabazite zeolites as catalysts for conversion of... Selected chabazite zeolites as catalysts for conversion of...

C - Chemistry, Metallurgy

07

C

260/609.3

C07C 85/02 (1985.01) C07C 87/08 (1985.01)

Patent

CA 1246614

TITLE Selected Chabazite Zeolites as Catalysts for Conversion of Methanol and Ammonia to Dimethylamine ABSTRACT A process is provided for producing dimethylamine, comprising reacting methanol and/or dimethylether and ammonia in amounts sufficient to provide a carbon/nitrogen (C/N) ratio from about 0.2 to about 1.5, at a temperature from about 250°C to about 450°C, in the presence of a catalytic amount of an acidic zeolite catalyst selected from the group consisting of natural, H-exchanged, and M-exchanged chabazites, each having a geometric selectivity index greater than about 3, wherein M is one or more alkali metal ions selected from the group consisting of Na, K, Rb, and Cs.

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