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. 14, 2008
Filed:
Mar. 14, 2002
Applicants:
Wolfgang Arlt, Hohen Neuendorf, DE;
Matthias Seiler, Berlin, DE;
Carsten Jork, Berlin, DE;
Thomas Schneider, Berlin, DE;
Inventors:
Wolfgang Arlt, Hohen Neuendorf, DE;
Matthias Seiler, Berlin, DE;
Carsten Jork, Berlin, DE;
Thomas Schneider, Berlin, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshaffen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/40 (2006.01); C07C 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for separating close-boiling, homo- and heteroazeotropic mixtures by using ionic liquids. Due to the selectivity and unusual combination of properties of the ionic liquids the process is superior to conventional extractive rectification from the point of view of costs and energy.