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:
Feb. 25, 2020
Filed:
Jun. 29, 2016
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Norbert Asprion, Ludwigshafen, DE;
Bernd Heida, Ellerstadt, DE;
Jan-Oliver Weidert, Schifferstadt, DE;
Ortmund Lang, Quirnbach, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/14 (2006.01); B01D 3/32 (2006.01); B01D 3/40 (2006.01); B01D 5/00 (2006.01);
U.S. Cl.
CPC ...
B01D 3/322 (2013.01); B01D 3/143 (2013.01); B01D 3/326 (2013.01); B01D 3/40 (2013.01); B01D 3/14 (2013.01); B01D 3/32 (2013.01); B01D 5/0063 (2013.01);
Abstract
A distillation device comprising a column for separating a feed stream into a head product stream, a bottom product stream and optionally one or more side extraction streams, having three or more cells in 5 series through which fluid flows, wherein at least the first cell is integrated into the bottom of the column, for multi-stage heating and partial evaporation of the liquid flowing through the cells with the exception of the liquid from the last cell in an evaporation stage.