Abstract:
A method is provided for improving the adsorptive properties, catalytic capabilities and thermal stability of organic cation-containing crystalline zeolites which comprises the sequential steps of (1) heating said zeolite, under controlled temperature conditions, to decompose organic material contained in the zeolite without effecting coking thereof, (2) heating said zeolite, under controlled temperature conditions, in an aqueous monovalent metal salt solution, and then (3) calcining the so treated zeolite. Steps (1) and (2) may be repeated, if desired, in sequence, prior to the calcining step (3).