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US 5,344,989 AGranted
Zeolite ZK-5 catalyst for conversion of methanol and ammonia to monomethylamine and dimethylamine
AssigneeE. I. Du Pont de Nemours and Company
InventorsDavid R. Corbin, Stephan Schwarz
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Abstract
An improved process for production of monomethylamines and dimethylamines, wherein an acidic zeolite H--ZK-5 prepared from K,Sr--ZK-5 is used to increase selectivity of the reaction.
Claims7
An improved process for producing dimethylamine and monomethylamine comprising:
- contacting methanol and/or dimethylether and ammonia, in amounts sufficient to provide a carbon/nitrogen ratio from about 0.2 to about 1.5 and at a reaction temperature from about 250.degree. C. to about 450.degree. C., in the presence of a catalytic amount of an acidic zeolite H--ZK-5;
- wherein the improvement comprises using an acidic zeolite H--ZK-5 which has been obtained by ion exchange of K,Sr--ZK-5.
Dependencies are inferred from the claim text.