Patent ID: 7407906
Filing Date: 2008-08-05
Classification: B01J

Abstract:
1. A process for the preparation of a molecular sieve adsorbent for adsorptive dehydration of alcohols, said process comprising the steps of: a) obtaining a molecular sieve adsorbent represented by the chemical formula: (Na b) activating the molecular sieve adsorbent at a temperature in the range of 350 to 450° C. to eliminate physically adsorbed water, for a period ranging from 3 to 6 hours; c) cooling the activated the molecular sieve adsorbent under vacuum in the range of 10 d) treating the activated adsorbent with an alkoxide of element M in a dry solvent; e) drying the treated activated adsorbent of step (d) in air in static condition at a temperature in the range of 15 to 40° C.; f) converting the alkoxide deposited on modified adsorbent into silica by calcining the same in a temperature range of 450 to 600° C. for a period ranging from 3 to 8 hrs, and g) obtaining the adsorbent by cooling the calcined product of step (g) at ambient temperature in static condition.