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. 07, 2008
Filed:
May. 17, 2002
Eckhard Ströfer, Mannheim, DE;
Gerd Kaibel, Lampertheim, DE;
Achim Stammer, Mobile, AL (US);
Carsten Oost, Bad Dürkheim, DE;
Martin Sohn, Mannheim, DE;
Manfred Stroezel, Ilvesheim, DE;
Walter Dobler, Schwetzingen, DE;
Eckhard Ströfer, Mannheim, DE;
Gerd Kaibel, Lampertheim, DE;
Achim Stammer, Mobile, AL (US);
Carsten Oost, Bad Dürkheim, DE;
Martin Sohn, Mannheim, DE;
Manfred Stroezel, Ilvesheim, DE;
Walter Dobler, Schwetzingen, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
A process is proposed for the distillation or reactive distillation of a mixture that includes at least one toxic component, the process being carried out in a column containing a structured packing, having at least one packing layer () having a lower end () and an upper end (), the packing layer having an internal geometry varying over its height, in such a manner that in the distillation or reactive distillation, in a first, lower region () of the packing layer () a bubbling layer having a predominantly disperse gas phase can be established and simultaneously in a second, upper region () of the packing layer () a film flow having a predominantly continuous gas phase can be established.