Epoxidation process using a mixed catalyst system

B - Operations – Transporting – 01 – J

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B01J 29/89 (2006.01) B01J 23/44 (2006.01) C07D 301/04 (2006.01)

Patent

CA 2552573

The invention is a process for epoxidizing olefins with hydrogen and oxygen in the presence of a palladium-containing titanium zeolite and a palladium-free titanium zeolite. The process exhibits good productivity and selectivity for olefin epoxidation with hydrogen, and oxygen. Surprisingly, the presence of palladium-free titanium zeolite in addition to the palladium-containing titanium zeolite in the process improves the palladium productivity of the process.

L'invention concerne un procédé qui permet d'époxyder les oléfines avec de l'hydrogène et de l'oxygène en présence d'une zéolite au titane contenant du palladium et une zéolite au titane sans palladium. Ce procédé présente une bonne productivité et une bonne sélectivité pour l'époxydation des oléfines avec de l'hydrogène et de l'oxygène. Curieusement, la présence de la zéolite au titane sans palladium en plus de la zéolite au titane contenant du palladium dans ce procédé permet d'améliorer la productivité de palladium du procédé.

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