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:
Jul. 09, 2019
Filed:
Jun. 07, 2017
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Ulrich Hammon, Mannheim, DE;
Thomas Walter, Hassloch, DE;
Markus Ottenbacher, Wilhelmsfeld, DE;
Frank Huetten, Mannheim, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01J 19/24 (2006.01); C07C 51/487 (2006.01); C07C 51/44 (2006.01); C07C 51/48 (2006.01); B01D 3/34 (2006.01); B01D 3/00 (2006.01); B01D 3/14 (2006.01); C07C 51/42 (2006.01); C07C 57/04 (2006.01);
U.S. Cl.
CPC ...
C07C 51/487 (2013.01); B01D 3/009 (2013.01); B01D 3/143 (2013.01); B01D 3/346 (2013.01); B01J 19/24 (2013.01); C07C 51/42 (2013.01); C07C 51/44 (2013.01); C07C 51/48 (2013.01); C07C 57/04 (2013.01); B01J 2219/24 (2013.01);
Abstract
A plant () for recovering acrylic acid, which includes: a absorption column (); a dissociation column (); a first line () connected to the dissociation column (); a second line () connecting the absorption column () and the dissociation column (); a third line () feeding a substream of the mother acid obtained in the crystallization into the dissociation column (); a fourth line () connecting the crystallization apparatus and the absorption column (); and a fifth line () connecting the dissociation column () and the absorption column ().