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:
Oct. 20, 1998
Filed:
Jul. 08, 1996
Applicant:
Inventors:
Yasushi Shiraki, Tokuyama, JP;
Junshi Matsui, Ichihara, JP;
Assignee:
Idemitsu Petrochemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; B01J / ;
U.S. Cl.
CPC ...
585444 ; 585440 ; 502330 ;
Abstract
An iron oxide catalyst for dehydrogenation of an alkyl aromatic hydrocarbon, wherein the catalyst is produced by adding potassium oxide to an iron oxide. The catalyst contains potassium ferrite. The catalyst has a ratio of a pore volume having a pore diameter of from 20 to 100 nm to a pore volume having a pore diameter of from 0 to 100 nm of between 0.7 and 9.0. The catalyst exhibits an excellent initial activity and has a substantially long catalyst life.