Patent ID: 6838572
Filing Date: 2005-01-04
Classification: C01B,C07D

Abstract:
1. A continuous process for the epoxidation of olefins with hydrogen peroxide in the presence of a heterogeneous catalyst promoting the epoxidation reaction, comprising forming an aqueous reaction mixture which comprises: i) an olefin; ii) hydrogen peroxide; iii) less than 100 wppm of a member selected from the group consisting of an alkali metal, an alkaline earth metal, both irrespective whether in ionic or complex form, a base or a cation of a base having a pk iv) at least 100 wppm of a base or a cation of a base having a pk whereby the wppm are based on the total weight of hydrogen peroxide in the reaction mixture, and reacting the reaction mixture in the presence of said heterogeneous catalyst to obtain the desired product.