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.:
Date of Patent:
Jul. 14, 2015
Filed:
Apr. 14, 2011
Christopher P Nicholas, Evanston, IL (US);
Mark A. Krawczyk, Chicago, IL (US);
Kristoffer E. Popp, Chicago, IL (US);
Jennifer F. Abrahamian, Chicago, IL (US);
Christopher P Nicholas, Evanston, IL (US);
Mark A. Krawczyk, Chicago, IL (US);
Kristoffer E. Popp, Chicago, IL (US);
Jennifer F. Abrahamian, Chicago, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A process for olefin metathesis is disclosed. The process involves contacting a feedstock comprising a first olefin and a second olefin having a carbon number at least two greater than that of the first olefin with a catalyst comprising a tungsten component on a refractory oxide support, e.g. silica at metathesis conditions to provide a product olefin having an intermediate carbon number between that of the first and second olefin. The catalyst is characterized in that it is first pretreated with hydrogen followed by treatment with ethylene.