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. 31, 2012
Filed:
Dec. 06, 2005
Applicants:
Martin Fiene, Niederkirchen, DE;
Harald Rust, Neustadt, DE;
Klemens Massonne, Bad Dürkheim, DE;
Veit Stegmann, Mannheim, DE;
Oliver Huttenloch, Ispringen, DE;
Jörg Heilek, Bammental, DE;
Inventors:
Martin Fiene, Niederkirchen, DE;
Harald Rust, Neustadt, DE;
Klemens Massonne, Bad Dürkheim, DE;
Veit Stegmann, Mannheim, DE;
Oliver Huttenloch, Ispringen, DE;
Jörg Heilek, Bammental, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for purifying an ionic liquid, which comprises the steps (a) partial crystallization of the ionic liquid from its melt and (b) separation of the crystals from the residual melt.