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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.:

US 9011784 B1

PDFFull Text
Date of Patent:
Apr. 21, 2015

Filed:

Aug. 08, 2012

Catalyst with lanthanide-doped zirconia and methods of making

Applicants:

Stephen J. Golden, Santa Barbara, CA (US);

Randal Hatfield, Oxnard, CA (US);

Jason D. Pless, Pottstown, PA (US);

Inventors:

Stephen J. Golden, Santa Barbara, CA (US);

Randal Hatfield, Oxnard, CA (US);

Jason D. Pless, Pottstown, PA (US);

Assignee:

Clean Diesel Technologies, Inc., Oxnard, CA (US);

Attorney:

Thaddius J. Carvis

Primary Examiner:

Tom P Duong

Int. Cl.
CPC ...
B01D 50/00 (2006.01); B01J 23/10 (2006.01); B01J 21/04 (2006.01); B01J 23/63 (2006.01); C01G 25/00 (2006.01); C01G 25/02 (2006.01); C01F 17/00 (2006.01); C04B 35/486 (2006.01); C04B 35/488 (2006.01); C04B 35/50 (2006.01); B01J 37/02 (2006.01); B01J 37/03 (2006.01); B01J 23/00 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 37/00 (2006.01);
U.S. Cl.
CPC ...
B01J 23/63 (2013.01); C01G 25/00 (2013.01); C01G 25/02 (2013.01); C01P 2002/54 (2013.01); C01F 17/0018 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01); C04B 35/486 (2013.01); C04B 35/488 (2013.01); C04B 35/50 (2013.01); C04B 2235/3205 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3227 (2013.01); C04B 2235/3229 (2013.01); B01J 37/0244 (2013.01); B01J 37/038 (2013.01); B01J 23/002 (2013.01); B01J 35/002 (2013.01); B01J 35/023 (2013.01); B01J 37/0036 (2013.01); B01J 37/0201 (2013.01); B01J 2523/00 (2013.01);
Abstract

The invention generally relates to three-way catalysts and catalyst formulations capable of simultaneously converting nitrogen oxides, carbon monoxide, and hydrocarbons into less toxic compounds. Such three-way catalyst formulations contain ZrO-based mixed-metal oxide support oxides doped with an amount of lanthanide. Three-way catalyst formulations with the support oxides of the present invention demonstrate higher catalytic activity, efficiency and longevity than comparable catalysts formulated with traditional support oxides.

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