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. 09, 2012
Filed:
Jun. 09, 2008
Applicants:
Gunnar Heydrich, Limburgerhof, DE;
Nawid Kashani-shirazi, Ilvesheim, DE;
Christoph Jäkel, Limburgerhof, DE;
Joachim Schmidt-leithoff, Mannheim, DE;
Inventors:
Gunnar Heydrich, Limburgerhof, DE;
Nawid Kashani-Shirazi, Ilvesheim, DE;
Christoph Jäkel, Limburgerhof, DE;
Joachim Schmidt-Leithoff, Mannheim, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a continuous process for preparing neral (cis-citral) in pure or enriched form by distillatively separating neral from substance mixtures comprising essentially neral and geranial (trans-citral). This distillative separation is performed in a dividing wall column or in a connection of two distillation columns in the form of a thermal coupling.