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. 21, 2003
Filed:
Oct. 23, 2001
Applicant:
Inventor:
Nobuji Kishimoto, Himeji, JP;
Assignee:
Nippon Shokubai Co Ltd, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 5/333 ;
U.S. Cl.
CPC ...
C07C 5/333 ;
Abstract
Novel oxidative dehydrogenation catalysts which are useful in vapor-phase oxidative dehydrogenation of lower alkanes with molecular oxygen to produce corresponding olefins at high yields are provided. The catalysts are characterized by containing Mn as the essential component and a crystal phase which is identified by the peaks appearing on their X-ray diffraction spectra (per Cu—K&agr; cathode) where the diffraction angle 2&thgr; (±0.3°) is at 32.9°, 55.2°, 23.1°, 38.2° and 65.8°. The use of those catalysts enables production of the olefins at high yields.