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:
Mar. 21, 2006
Filed:
Aug. 13, 2004
Applicants:
Jochen Petzoldt, Weisenheim am Berg, DE;
Signe Unverricht, Mannheim, DE;
Heiko Arnold, Nanjing, CN;
Klaus Joachim Müller-engel, Stutensee, DE;
Martin Dieterle, Mannheim, DE;
Inventors:
Jochen Petzoldt, Weisenheim am Berg, DE;
Signe Unverricht, Mannheim, DE;
Heiko Arnold, Nanjing, CN;
Klaus Joachim Müller-Engel, Stutensee, DE;
Martin Dieterle, Mannheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/16 (2006.01); C07C 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed gas phase partial oxidation of an organic precursor compound over a fresh fixed catalyst bed, in which the process is started up at a reduced hourly space velocity of charging gas mixture on the fixed catalyst bed.