Patent ID: 8962872
Filing Date: 2015-02-24
Classification: B01J,C07D

Abstract:
1. A method for preparing an epoxide, comprising the step of: performing a reaction of an alkene and an oxidant in the presence of a Ti—Si molecular sieve of formula (I) as a catalyst wherein x is in a range of from 0.001 to 0.05, y is in a range of from 0.005 to 0.1, and z is x+2y+2; wherein the catalyst is prepared by preparing a mixture of tetrabutyl titanate, tetraethyl silicate, tetrapropylammonium hydroxide in isopropanol, magnesium sulfate, and water; heating the mixture to form a gel mixture; mixing a colloidal silica with the gel mixture; heating the gel mixture mixed with the colloidal silica in a water bath; and calcining the gel mixture mixed with the colloidal silica.