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:
Jan. 30, 2007
Filed:
Mar. 12, 2003
Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof
Applicants:
Jens Weiguny, Shanghai, CN;
Sebastian Storck, Mannheim, DE;
Mark Duda, Ludwigshafen, DE;
Cornelia Dobner, Frankenthal, DE;
Inventors:
Jens Weiguny, Shanghai, CN;
Sebastian Storck, Mannheim, DE;
Mark Duda, Ludwigshafen, DE;
Cornelia Dobner, Frankenthal, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 27/18 (2006.01); C07D 307/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing a vanadium, phosphorus, and oxygen catalyst precursor for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four carbon atoms, which comprises