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:
Feb. 08, 2005
Filed:
Jan. 13, 2004
Applicants:
Chandrashekhar P. Kelkar, Bridgewater, NJ (US);
David Stockwell, Middlesex, NJ (US);
Samual Tauster, Englishtown, NJ (US);
Inventors:
Chandrashekhar P. Kelkar, Bridgewater, NJ (US);
David Stockwell, Middlesex, NJ (US);
Samual Tauster, Englishtown, NJ (US);
Assignee:
Engelhard Corporation, Iselin, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J008/00 ; B01J023/00 ; C01B021/00 ;
U.S. Cl.
CPC ...
Abstract
A composition for controlling NOemissions during FCC processes comprises (i) an acidic oxide support, (ii) cerium oxide, (iii) a lanthanide oxide other than ceria such as praseodymium oxide, and (iv), optionally, an oxide of a metal from Groups Ib and IIb such as copper, silver and zinc.