Direct epoxidation process

Details Direct epoxidation process Direct epoxidation process

2006-11-21

2006-11-21

Dentz, Bernard (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S531000

Reexamination Certificate

active

07138535

ABSTRACT:
The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a catalyst comprising a noble metal and a titanium or vanadium zeolite in a solvent mixture comprising water, methanol, and a C3–C6aliphatic ketone. This process surprisingly gives significantly reduced by-product glycol and glycol ethers formed by the unwanted ring-opening of epoxides.

REFERENCES:
patent: 3351635 (1967-11-01), Kollar
patent: 4367342 (1983-01-01), Wulff et al.
patent: 4833260 (1989-05-01), Neri et al.
patent: 5859265 (1999-01-01), Müller et al.
patent: 6005123 (1999-12-01), Dessau et al.
patent: 6008388 (1999-12-01), Dessau et al.
patent: 6399794 (2002-06-01), Hancu
patent: 6555493 (2003-04-01), Cooker et al.
patent: 1001038 (1989-06-01), None
patent: 4-352771 (1992-12-01), None
patent: WO 98/00413 (1998-01-01), None
Li et al, Reaction Kinetics and Catalysis Letters, vol. 82, No. 1, p. 73-80 (2004).

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