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:
Aug. 06, 2013
Filed:
Aug. 04, 2010
Applicants:
Christian Riemann, Altrip, DE;
Torsten Katz, Neustadt, DE;
Georg Sieder, Bad Dürkheim, DE;
Gerald Vorberg, Speyer, DE;
Erika Dengler, Böhl-Iggelheim, DE;
Inventors:
Christian Riemann, Altrip, DE;
Torsten Katz, Neustadt, DE;
Georg Sieder, Bad Dürkheim, DE;
Gerald Vorberg, Speyer, DE;
Erika Dengler, Böhl-Iggelheim, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 229/12 (2006.01); C07D 241/04 (2006.01); B01D 53/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution (A) of an alkali metal salt of an N,N-di-C-C-alkylaminocarboxylic acid and (B) N-hydroxyethylpiperazine. The absorption medium has a low vapor pressure and an increased resistance to oxygen. Preferred fluid streams are combustion exhaust gases or biogas.