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:
Oct. 23, 2012
Filed:
Dec. 16, 2010
Tilman W. Beutel, Neshanic Station, NJ (US);
Ivor Bull, Hopewell Junction, NY (US);
Ahmad Moini, Princeton, NJ (US);
Michael Breen, Erie, PA (US);
Martin Dieterle, Jersey City, NJ (US);
Saeed Alerasool, Princeton Junction, NJ (US);
Barbara Slawski, North Royalton, OH (US);
Tilman W. Beutel, Neshanic Station, NJ (US);
Ivor Bull, Hopewell Junction, NY (US);
Ahmad Moini, Princeton, NJ (US);
Michael Breen, Erie, PA (US);
Martin Dieterle, Jersey City, NJ (US);
Saeed Alerasool, Princeton Junction, NJ (US);
Barbara Slawski, North Royalton, OH (US);
BASF Corporation, Florham Park, NJ (US);
Abstract
Disclosed are processes for the preparation of copper containing molecular sieves with the CHA structure having a silica to alumina mole ratio greater than about 10, wherein the copper exchange step is conducted via wet state exchanged and prior to the coating step and wherein in the copper exchange step a liquid copper solution is used wherein the concentration of copper is in the range of about 0.001 to about 0.25 molar using copper acetate and/or an ammoniacal solution of copper ions as copper source. Catalysts made by the processes, catalyst systems and methods of treating exhaust gas with the molecular sieves and catalysts are also disclosed.