Patent ID: 7345182
Filing Date: 2008-03-18
Classification: B01J,C07D

Abstract:
1. A process for the catalytic epoxidation of styrene with molecular oxygen using metal ion exchanged zeolite, which comprises reacting styrene with air or molecular oxygen in an organic solvent, in the presence of a zeolite based catalyst having the general formula (CoO) a .(M 2/n O) b .(Al 2 O 3 ) c .(SiO 2 ) d .wH 2 O, wherein the values of a varies from 8 to 48; b varies from 0 to 80 with 2a+b=c, w being the number of moles of water varies from 0 to 200 and M is alkali and/alkaline earth metal ion having valancy n, where n is +1 or +2, at a temperature in the range of 80-150° C., for a period of 3-6 hrs, separating the catalyst from the above said reaction mixture by known methods to obtain the desired product.