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. 18, 2014
Filed:
Sep. 16, 2009
Willi Schmidt, Ludwigshafen, DE;
Gerd Kaibel, Lampertheim, DE;
Elke Geiβbler, Ludwigshafen, DE;
Wolfgang Reif, Frankenthal, DE;
Manfred Julius, Limburgerhof, DE;
Frank-friedrich Pape, Kleinniedesheim, DE;
Willi Schmidt, Ludwigshafen, DE;
Gerd Kaibel, Lampertheim, DE;
Elke Geiβbler, Ludwigshafen, DE;
Wolfgang Reif, Frankenthal, DE;
Manfred Julius, Limburgerhof, DE;
Frank-Friedrich Pape, Kleinniedesheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Apparatus and processes for continuous distillative separation of a mixture comprising one or more alkanolamine(s), wherein the separation is performed in one or more dividing wall column(s) and the alkanolamine or the alkanolamines is/are withdrawn as a side draw stream or side draw streams (side fraction(s)).