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:
Apr. 24, 2012
Filed:
Oct. 16, 2006
Bram Willem Hoffer, Heidelberg, DE;
Hartwig Voβ, Frankenthal, DE;
Ekkehard Schwab, Neustadt, DE;
Udo Rheude, Otterstadt, DE;
Gerd Kaibel, Lampertheim, DE;
Mathias Haake, Hong Kong, HK;
Jan Eberhardt, Mannheim, DE;
Michael Karcher, Schwetzingen, DE;
Bram Willem Hoffer, Heidelberg, DE;
Hartwig Voβ, Frankenthal, DE;
Ekkehard Schwab, Neustadt, DE;
Udo Rheude, Otterstadt, DE;
Gerd Kaibel, Lampertheim, DE;
Mathias Haake, Hong Kong, HK;
Jan Eberhardt, Mannheim, DE;
Michael Karcher, Schwetzingen, DE;
BASF SE, Ludwigschafen, DE;
Abstract
A process is described for continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, wherein the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure.