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:
Jun. 19, 2018
Filed:
Mar. 17, 2017
Johnson Matthey Public Limited Company, London, GB;
Philip Gerald Blakeman, Shanghai, CN;
Guy Richard Chandler, Royston, GB;
Hai-Ying Chen, Wayne, PA (US);
Debnath De, Malvern, PA (US);
Joseph Michael Fedeyko, Wayne, PA (US);
Alexander Nicholas Michael Green, Royston, GB;
Wendy Manning, Wayne, PA (US);
Shadab Mulla, Audubon, PA (US);
Johnson Matthey Public Limited Company, London, GB;
Abstract
Provided is a catalyst for the selective reduction of NOx comprising a two molecular sieve materials having a CHA structure, wherein the first molecular sieve has a mean crystal size of about 0.01 to 1 μm and the second molecular sieve has a mean crystal size of about 1-5 μm, and wherein the first molecular sieve contains a first extra-framework metal, the second molecular sieve contains a second extra-framework metal, and wherein said first and second extra-framework metals are independently selected from the group consisting of cesium, copper, nickel, zinc, iron, tin, tungsten, molybdenum, cobalt, bismuth, titanium, zirconium, antimony, manganese, chromium, vanadium, niobium, and combinations thereof.