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. 05, 2010
Filed:
Dec. 04, 2006
Applicants:
Martin Dieterle, Mannheim, DE;
Armin Diefenbacher, Germersheim, DE;
Klaus Joachim Mueller-engel, Stutensee, DE;
Jochen Petzoldt, Weisenheim am Berg, DE;
Inventors:
Martin Dieterle, Mannheim, DE;
Armin Diefenbacher, Germersheim, DE;
Klaus Joachim Mueller-Engel, Stutensee, DE;
Jochen Petzoldt, Weisenheim am Berg, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/16 (2006.01); C07C 69/52 (2006.01); C08F 120/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for heterogeneously catalyzed partial gas phase oxidation of propylene to acrylic acid in the absence of propane as an inert diluent gas, in which, in the starting reaction gas mixture, cyclopropane is substantially avoided as an impurity and crude propylene is used additionally as a propylene source.