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:
Apr. 07, 2009
Filed:
Sep. 20, 2005
Stephen J. Golden, Santa Barbara, CA (US);
Stephen J. Golden, Santa Barbara, CA (US);
Catalytic Solutions, Inc., Oxnard, CA (US);
Abstract
Methods of controlling emissions from a diesel engine are provided. The method includes contacting the emissions with a perovskite-type catalyst consisting essentially of a metal oxide composition represented by the general formula ABMO, in which A is a mixture originally in the form of single phase mixed lanthanides collected from bastnasite; B is a divalent or monovalent cation; M is at least one element selected from the group consisting of M is at least one element selected from the group consisting of elements of an atomic number of from 22 to 30, 40 to 51, and 73 to 80; a is 1 or 2; b is 3 when a is 1 or b is 4 when a is 2; and x is a number defined by 0<x<0.7. The perovskite-type catalyst may be used to oxidize hydrocarbons and carbon monoxide and to control particulate emissions in the diesel exhaust.