Patent ID: 7195748
Filing Date: 2007-03-27
Classification: B01J,C01B,Y02P

Abstract:
1. In a process for the production of hydrogen peroxide, comprising: a) a hydrogenation stage reaction comprising the hydrogenation of an anthraquinone derivative with a hydrogen-containing gas in the presence of a hydrogenating catalyst to form an anthrahydroquinone derivative, said anthraquinone derivative and anthrahydroquinone derivative being contained within a working solution; b) an oxidation stage reaction comprising the reconversion of said anthrahydroquinone of step a) back to said anthraquinone derivative using an oxygen-containing gas, said reconversion being accompanied by the formation of hydrogen peroxide; and c) an extraction stage comprising isolating said hydrogen peroxide formed in step b) and then returning the working solution to said hydrogenation stage reaction, the improvement comprising adding molecular oxygen (O