Patent ID: 8344167
Filing Date: 2013-01-01
Classification: C07D

Abstract:
1. A method for producing propylene oxide, comprising the steps of: reacting hydrogen peroxide with propylene either in an acetonitrile solvent or in a mixture of solvents which include acetonitrile and water, in presence of a titanosilicate catalyst, so as to obtain a reaction mixture containing propylene oxide; separating the reaction mixture obtained in the reacting into a gas and a reaction liquid; and distilling the reaction liquid obtained in the separating, so as to separate the reaction liquid into a distillate liquid containing propylene oxide, and a bottoms liquid including acetonitrile or a combination of acetonitrile and water, wherein the hydrogen peroxide is produced by reaction of oxygen and hydrogen, in presence of (i) a palladium catalyst supported on a carrier and (ii) an anthraquinone compound, within a reaction system of the reacting.