| abstract |
(57) [Summary]nProcesses and catalysts for the direct oxidation of olefins having three or more carbon atoms, such as propylene, by oxygen to the corresponding olefin oxides, such as propylene oxide. The process involves contacting the olefin with the oxidation under the reaction conditions in the presence of hydrogen and in the presence of a catalyst. The catalyst is a titanosilicate, preferably a microporous or mesoporous titanosilicate, such as gold supported on TS-1, TS-2, Ti-β, Ti-ZSM-48 or Ti-MCM-41. including. The selectivity to olefin oxide is high with good conversion of the olefin. The catalyst is easily regenerated and the time between catalyst regeneration is long. |