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. 23, 2012
Filed:
Aug. 29, 2008
Jochem Henkelmann, Mannheim, DE;
Roman Prochazka, Mannheim, DE;
Oliver Bey, Niederkirchen, DE;
Stephan Maurer, Neustadt-Gimmeldingen, DE;
Jochen Steiner, Mannheim, DE;
Heiko Urtel, Mannheim, DE;
Gerhard Theis, Maxdorf, DE;
Peter Wahl, Heidelberg, DE;
Jochem Henkelmann, Mannheim, DE;
Roman Prochazka, Mannheim, DE;
Oliver Bey, Niederkirchen, DE;
Stephan Maurer, Neustadt-Gimmeldingen, DE;
Jochen Steiner, Mannheim, DE;
Heiko Urtel, Mannheim, DE;
Gerhard Theis, Maxdorf, DE;
Peter Wahl, Heidelberg, DE;
BASF SE, , DE;
Abstract
The present invention relates to a process for preparing 1,2-propanediol, in which a glycerol-containing stream, especially a stream obtained on the industrial scale in the production of biodiesel, is subjected to a hydrogenation in an at least three-stage reactor cascade.