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:
Sep. 22, 2015
Filed:
Dec. 21, 2009
Cornelia Katharina Dobner, Ludwigshafen, DE;
Stefan Altwasser, Wachenheim, DE;
Hagen Wilmer, Ludwigshafen, DE;
Frank Rosowski, Mannheim, DE;
Cornelia Katharina Dobner, Ludwigshafen, DE;
Stefan Altwasser, Wachenheim, DE;
Hagen Wilmer, Ludwigshafen, DE;
Frank Rosowski, Mannheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to a catalyst molded body for preparing maleic anhydride by gas-phase oxidation of a hydrocarbon having at least four carbon atoms using a catalytically active composition contains vanadium, phosphorus and oxygen, where the shaped catalyst body has an essentially cylindrical body having a longitudinal axis, wherein the cylindrical body has at least two parallel internal holes which are essentially parallel to the cylinder axis of the body and go right through the body. The catalyst molded body has a large outer surface area, a lower pressure loss and sufficient mechanical stability.