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:
Sep. 22, 1987
Filed:
Feb. 19, 1986
Dietrich Wagener, Essen, DE;
Karl H Laue, Hattingen, DE;
Egmar Wunderlich, Mulheim, DE;
Theo Sander, Essen, DE;
Claus Flockenhaus, Essen, DE;
Erich Hackler, Essen, DE;
Biagoje Levkov, Wiesbaden, DE;
Daniel Grimm, Schlangenbad-Barstadt, DE;
Hartmut Kainer, Wiesbaden, DE;
Hermann Stein, Bad Durkheim, DE;
Hans-Eugen Buhler, Konigstein, DE;
Horst Kalfa, Idstein, DE;
Johann Jansen, Duisburg, DE;
Werner Stender, Raesfeld, DE;
Arnold Max, Bottrop, DE;
Didier-Werke AG, Wiesbaden, DE;
Didier Engineering GmbH, Essen, DE;
Abstract
A catalyst for use with ammonia for the selective reduction of nitrogen oxides in waste gases. The catalyst comprises a mixture of substances which has high activity and selectivity with regard to nitrogen oxide conversion and high sorption capabilities with regard to ammonia, but low oxidation capabilities with regard to sulfur dioxide, ammonia, or similar substances. The invention also provides a process for the manufacture and use of such catalysts.