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:
Dec. 16, 2014
Filed:
Mar. 01, 2012
Nicola Soeger, Nidderau, DE;
Katja Adelmann, Darmstadt, DE;
Michael Seyler, Rodenbach, DE;
Thomas R. Pauly, Clarkston, MI (US);
Gerald Jeske, Neuberg, DE;
Nicola Soeger, Nidderau, DE;
Katja Adelmann, Darmstadt, DE;
Michael Seyler, Rodenbach, DE;
Thomas R. Pauly, Clarkston, MI (US);
Gerald Jeske, Neuberg, DE;
Umicore AG & Co. KG, Hanau-Wolfgang, DE;
Abstract
The invention relates to a catalytically active material for reacting nitrogen oxides with ammonia in the presence of hydrocarbons. The material consists of an inner core () made of a zeolite exchanged with one or more transition metals or a zeolite-like compound exchanged with one or more transition metals. The core of the catalytically active material is encased by a shell (), which is made of one or more oxides selected from silicon dioxide, germanium dioxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, zirconium dioxide, and mixed oxides thereof.