Direct epoxidation process

Details Direct epoxidation process Direct epoxidation process

2005-10-25

2008-10-07

Dentz, B. (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C502S066000, C502S245000, C502S402000, C549S531000

Reexamination Certificate

active

07432384

ABSTRACT:
A process is disclosed for the epoxidation of an olefin with hydrogen and oxygen in the presence of an oxidation catalyst comprising a transition metal zeolite and a polymer-encapsulated noble metal catalyst. The noble metal catalyst comprises a noble metal and an ion-exchange resin. The process using the polymer-encapsulated noble metal catalyst gives higher epoxide productivity than a process that uses a noble metal catalyst which is not encapsulated by a polymer.

REFERENCES:
patent: 3351635 (1967-11-01), Kollar
patent: 4367342 (1983-01-01), Wulff et al.
patent: 4410501 (1983-10-01), Taramasso et al.
patent: 4833260 (1989-05-01), Neri et al.
patent: 4994589 (1991-02-01), Notermann
patent: 5623090 (1997-04-01), Haruta et al.
patent: 5780657 (1998-07-01), Cooker et al.
patent: 5824622 (1998-10-01), Harmer et al.
patent: 5856534 (1999-01-01), Cooker et al.
patent: 6008388 (1999-12-01), Dessau et al.
patent: 6156245 (2000-12-01), Takebayashi et al.
patent: 6362349 (2002-03-01), Kuperman et al.
patent: 6399794 (2002-06-01), Hancu
patent: 6498259 (2002-12-01), Grey et al.
patent: 6646142 (2003-11-01), Meima et al.
patent: 6958405 (2005-10-01), Le-Khac et al.
patent: 1001038 (1989-06-01), None
patent: 0 345 856 (1989-12-01), None
patent: 0 498 166 (1992-08-01), None
patent: 4-352771 (1992-12-01), None
Lattanzi et al., Org. Lett., 2002, 4(9), 1519-1521.
Dechow, Frederick, Separation and Purification Techniques in Biotechnology, Noyes Publications, 1989.
S. Kobayashi et al.,Chem. Commun. (2003) 449.
R. Akiyama et al.,Angew. Chem. Int. Ed. 40 (2001) 3469.
S. Kobayashi et al.,J. Am. Chem. Soc. 120 (1998) 2985.
R. Szostak, “Non-aluminosilicate Molecular Sieves,” inMolecular Sieves: Principles of Synthesis and Identification(1989) pp. 205-282.
G. Vayssilov,Catal. Rev.—Sci. Eng. 39(3) (1997) 209.
F. Helfferich,Ion ExchangeChapter 3, (1962) pp. 26-71.
R. Albright, “Basic Principles of Catalysis by Functionalized Porous Organic Polymers,” inCatalyst Supports and Supported Catalysts(1987) A. Stiles, Ed., pp. 159-186.
M. Donbrow, “Microcapsules and Nanoparticles” inMedicine and Pharmacypp. 1-14, CRC Press, 1991.
G. Beestman, “Microencapsulation of Solid Particles” inControlled-Release Delivery Systems for Pesticides(1999) H. Scher, Ed., pp. 31-54.
C. Ramarao et al.,Chem. Commun. (2002) 1132 & 1134.
J. Q. Yu et al.,Chem. Commun. (2003) 678.
H. Kage et al.,Adv. Powder Technol. 13 (2002) 265.

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