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:
Aug. 13, 1991
Filed:
Oct. 05, 1990
Applicant:
Inventors:
Ted H Cymbaluk, Bartlesville, OK (US);
Gerhard P Nowack, Bartlesville, OK (US);
Marvin M Johnson, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502 36 ; 502230 ;
Abstract
A spent butane isomerization catalyst which contains platinum and chlorine on alumina is converted to an active n-pentane isomerization catalyst by processes comprising fluorination (preferably with dissolved HF or NH.sub.4 HF) and calcination (before and/or after the fluorination step). The thus-treated catalysts are used for isomerizing n-pentane to isopentane.