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:
Aug. 25, 2009
Filed:
Dec. 02, 2003
Bernhard Gutsche, Hilden, DE;
Magnus Topphoff, Düsseldorf, DE;
Harald Röβler, Düsseldorf, DE;
Erich Reuter, Düsseldorf, DE;
Bernhard Gutsche, Hilden, DE;
Magnus Topphoff, Düsseldorf, DE;
Harald Röβler, Düsseldorf, DE;
Erich Reuter, Düsseldorf, DE;
Cognis IP Managment GmbH, Duesseldorf, DE;
Abstract
The disclosed invention relates to a countercurrent process for the continuous esterification of C(fatty) acids with Cmonoalkanols, Cdi- or trialkanols or mixtures thereof in the liquid phase in the presence of heterogeneous catalysts in a preliminary reactor () and in a reaction column (), characterized in that the reaction column () is preceded by the preliminary reactor () and a separation unit () for the purpose of reducing the viscosity of the reaction mixture and removing the water of reaction from the system via a separation unit () to displace the reaction equilibrium before the reaction column (). A further aspect of the invention concerns feeding nitrogen in at the lowermost plate of the reaction column () in order to increase the vapor load in the lower part of the reaction column.