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1. WO2012044827 - PROCÉDÉ D'ÉPOXYDATION DIRECTE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

We claim:

1. A process for producing an epoxide, which comprises reacting an olefin, oxygen, and hydrogen in a solvent comprising acetonitrile in the presence of a quinone-acid salt and a catalyst comprising a titanium zeolite and a noble metal.

2. The process of claim 1 wherein the noble metal is palladium.

3. The process of claim 1 wherein the titanium zeolite is a titanium-MWW zeolite.

4. The process of claim 1 wherein the noble metal is supported on the titanium zeolite.

5. The process of claim 1 wherein the noble metal is supported on a carrier.

6. The process of claim 5 wherein the carrier is selected from the group consisting of carbon, titania, zirconia, niobia, silica, alumina, silica-alumina, tantalum oxide, molybdenum oxide, tungsten oxide, titania-silica, zirconia-silica, niobia-silica, and mixtures thereof.

7. The process of claim 1 wherein the olefin is a C2-Ce olefin.

8. The process of claim 1 wherein the olefin is propylene.

9. The process of claim 1 wherein the quinone-acid salt is a quinone or hydroquinone compound that is substituted with at least one acid salt group.

10. The process of claim 9 wherein the quinone or hydroquinone compound is an anthraquinone, a phenanthrenequinone, or a napthaquinone, and the acid salt group is an alkali metal or an ammonium or alkylammonium salt of a sulfonate, carboxylate, or phosphonate.

11. The process of claim 9 wherein the quinone-acid salt is sodium anthraquinone-2-sulfonate.

12. The process of claim 1 wherein the solvent further comprises water.