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. 23, 2011
Filed:
Jul. 13, 2006
Christian Walsdorff, Ludwigshafen, DE;
Christophe Houssin, Mannheim, DE;
Gerald Vorberg, Speyer, DE;
Reinhard Koerner, Frankenthal, DE;
Otto Hofstadt, Speyer, DE;
Christian Walsdorff, Ludwigshafen, DE;
Christophe Houssin, Mannheim, DE;
Gerald Vorberg, Speyer, DE;
Reinhard Koerner, Frankenthal, DE;
Otto Hofstadt, Speyer, DE;
BASF SE, , DE;
Abstract
Catalysts comprising: a ground, spent (de)hydrogenation catalyst material present in an amount of 10 to 70% by weight based on the catalyst, the ground, spent catalyst material comprising iron oxide; and a fresh catalyst material present in an amount of 30 to 90% by weight based on the catalyst, the fresh catalyst material comprising iron oxide, wherein at least a portion of the iron oxide in the fresh catalyst material comprises a phase selected from the group consisting of hematite, potassium ferrite, and mixtures thereof are described along with processes for preparing and using the same.