Modified zeolite catalyst compositions and methods of use

A method for the preparation of pyridine and/or its alkylpyridine derivatives in high yield the method comprising:

• reacting a C2 to Cs aldehyde, a C3 to Cs ketone or a mixture thereof, with ammonia and, optionally formaldehyde, and in the presence of an effective amount of a modified zeolite catalyst composition comprising a zeolite, an alumina binder, and matrix,
• wherein at least one of the zeolite, alumina binder, or matrix has been treated with one or more ions of or compounds containing fluorine, wherein the one or more compounds containing fluorine comprise a fluorosilicate.