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:
Mar. 01, 2022
Filed:
May. 13, 2019
Umicore Ag & Co. KG, Hanau-Wolfgang, DE;
Andreas Jan Hoffmann, Mechelen, BE;
Michiel De Prins, Heverlee, BE;
Sam Smet, Kessel-Lo, BE;
Sreeprasanth Pulinthanathu Sree, Oud-Heverlee, BE;
Elke Jane June Verheyen, Heverlee, BE;
Johan Adriaan Martens, St-Joris-Weert, BE;
Leen Van Tendeloo, Lier, BE;
Frank-Walter Schuetze, Aschaffenburg, DE;
Umicore AG & Co. KG, Hanau-Wolfgang, DE;
Abstract
The present invention provides crystalline aluminosilicate zeolites having a maximum pore size of eight tetrahedral atoms, wherein the zeolite has a total proton content of less than 2 mmol per gram. The zeolite may comprise 0.1 to 10 wt.-% of at least one transition metal, calculated as the respective oxide and based on the total weight of the zeolite. It may furthermore comprise at least one alkali or alkaline earth metal in a concentration of 0 to 2 wt.-%, calculated as the respective metal and based on the total weight of the zeolite. The zeolites may be used for the removal of NOx from automotive combustion exhaust gases.