The method of preparation of epoxides

A method for preparing an epoxide, such as including the use of titanium of formula (I), - the silicalite molecular sieve as a catalyst olefinic compound and the oxidant react to form an epoxide, wherein, x is from 0.001 to 0.05, y is 0.005 to 0.1, z is x + 2y + 2. Preparation of epoxides of the present invention provides a method, simple preparation process and not only has the advantage of high hydrogen peroxide conversion rate and high yield of epoxide and the like, and is beneficial to industrial applications. (MgxTiySi) Oz? ? ? ? Of formula (I).