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. 25, 2017
Filed:
Sep. 02, 2014
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Tim Blaschke, Stuttgart, DE;
Ortmund Lang, Quirnbach, DE;
Nicolai Tonio Wörz, Darmstadt, DE;
Christian Raith, Mannheim, DE;
Marco Hartmann, Woerth, DE;
Marta Zajaczkowski-Fischer, Neuhofen, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/00 (2006.01); C07C 51/377 (2006.01); C07C 51/44 (2006.01); C07C 51/50 (2006.01); C07C 57/04 (2006.01);
U.S. Cl.
CPC ...
C07C 51/377 (2013.01); C07C 51/44 (2013.01); C07C 51/50 (2013.01); C07C 57/04 (2013.01);
Abstract
The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the liquid phase comprises an inert organic solvent 1.