Patent ID: 6087289
Filing Date: 2000-07-11
Classification: B01D,B01J,Y10S

Abstract:
A process for preparing a molecular sieve adsorbent for selectively adsorbing oxygen from a gaseous mixture comprising oxygen and nitrogen; oxygen and an inert gas; or oxygen, nitrogen and inert gas said process comprising:(a) preparing a mixture of zeolite powder from zeolite X or zeolite Y, clay and an organic binder;(b) shaping said zeolite mixture to obtain zeolite adsorbent bodies;(c) subjecting said adsorbent bodies to calcination; and(d) subjecting said adsorbent bodies either prior to or after calcination or both, to cationic exchange in the presence of at least a cerium salt solution to effect surface modification of said adsorbent bodies to obtain said molecular sieve adsorbent which is oxygen selective.