The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6670491 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 30, 2003

Filed:

Jan. 14, 2003
Applicant:
Inventors:

Robert G. Bowman, Midland, MI (US);

Howard W. Clark, Midland, MI (US);

Alex Kuperman, Midland, MI (US);

George E. Hartwell, Midland, MI (US);

Garmt R. Meima, Terneuzen, NL;

Assignee:

Dow Global Technologies Inc., Midland, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract

A process and catalysts for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to an olefin oxide, such as propylene oxide. The process involves contacting the olefin under reaction conditions with oxygen in the presence of hydrogen and a catalyst. The catalyst contains silver and titanium, optionally gold, and optionally, at least one promoter element selected from Group 1, Group 2, zinc, cadmium, the lanthanide rare earths, and the actinide elements. Suitable supports include titanium dioxide, titanium dioxide on silica, titanosilicates, promoter metal titanates, titanium dispersed on silica and promoter metal silicates.


Find Patent Forward Citations

Bowman, Robert. (2003). Process for the direct oxidation of olefins to olefin oxides (U.S. Patent No. 6670491). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6670491

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