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:
Dec. 25, 2012
Filed:
Apr. 02, 2004
Otto Machhammer, Mannheim, DE;
Sven Crone, Limburgerhof, DE;
Frieder Borgmeier, Mannheim, DE;
Klaus Joachim Mueller-engel, Stutensee, DE;
Christoph Adami, Weinheim, DE;
Armin Diefenbacher, Germersheim, DE;
Otto Machhammer, Mannheim, DE;
Sven Crone, Limburgerhof, DE;
Frieder Borgmeier, Mannheim, DE;
Klaus Joachim Mueller-Engel, Stutensee, DE;
Christoph Adami, Weinheim, DE;
Armin Diefenbacher, Germersheim, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
A process for heterogeneously catalyzed partial direct oxidation of propane and/or isobutane, in which target product is removed in a workup stage from the product gas mixture obtained in the reaction stage, the remaining residual product gas mixture is divided into two portions of the same composition, one portion is recycled into the reaction stage and the other portion is discharged, and both the reaction stage and the workup stage are operated at elevated pressure.