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:
Jan. 28, 2014
Filed:
Mar. 08, 2012
Thomas Schaub, Neustadt, DE;
Boris Buschhaus, Mannheim, DE;
Marion Kristina Brinks, Mannheim, DE;
Mathias Schelwies, Heidelberg, DE;
Rocco Paciello, Bad Duerkheim, DE;
Johann-peter Melder, Boehl-Iggelheim, DE;
Martin Merger, Frankenthal, DE;
Thomas Schaub, Neustadt, DE;
Boris Buschhaus, Mannheim, DE;
Marion Kristina Brinks, Mannheim, DE;
Mathias Schelwies, Heidelberg, DE;
Rocco Paciello, Bad Duerkheim, DE;
Johann-Peter Melder, Boehl-Iggelheim, DE;
Martin Merger, Frankenthal, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Preparing a primary amine by alcohol amination of alcohol with ammonia and elimination of water includes reacting, in a homogeneously catalyzed reaction, a mixture of alcohol, ammonia, nonpolar solvent, and catalyst, in a liquid phase, to obtain a product mixture. The process then includes phase separating the product mixture into a polar product phase and a nonpolar product phase, and separating off the nonpolar product phase. At least some of the nonpolar phase returns to the homogenously catalyzed reaction. The process further includes separating off amination product from the polar product phase. At least some of the catalyst is in the nonpolar phase, and the catalyst accumulates in the nonpolar phase.