logo

For the Inventor, By the Inventor

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 9498771 B1

PDFFull Text
Date of Patent:
Nov. 22, 2016

Filed:

Sep. 06, 2013

Catalyst for exhaust gas purification, and method for producing same

Applicants:

Rui Imoto, Susono, JP;

Daichi Sato, Susono, JP;

Satoshi Nagao, Gotenba, JP;

Masaya Ibe, Tokyo, JP;

Inventors:

Rui Imoto, Susono, JP;

Daichi Sato, Susono, JP;

Satoshi Nagao, Gotenba, JP;

Masaya Ibe, Tokyo, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oliff PLC

Primary Examiner:

Patricia L Hailey

Int. Cl.
CPC ...
B01J 23/42 (2006.01); B01J 27/18 (2006.01); B01J 37/00 (2006.01); B01D 53/56 (2006.01); B01D 53/94 (2006.01); B01J 27/16 (2006.01); B01J 23/40 (2006.01); B01J 23/44 (2006.01); B01J 29/83 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); B01J 23/46 (2006.01); B01J 27/185 (2006.01);
U.S. Cl.
CPC ...
B01J 27/16 (2013.01); B01D 53/94 (2013.01); B01D 53/945 (2013.01); B01J 23/40 (2013.01); B01J 23/42 (2013.01); B01J 23/44 (2013.01); B01J 23/464 (2013.01); B01J 27/1856 (2013.01); B01J 29/83 (2013.01); B01J 35/002 (2013.01); B01J 35/006 (2013.01); B01J 35/0006 (2013.01); B01J 35/0066 (2013.01); B01J 35/023 (2013.01); B01J 37/0063 (2013.01); B01J 37/0201 (2013.01); B01J 37/0211 (2013.01); B01J 37/08 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/9202 (2013.01); Y02T 10/22 (2013.01);
Abstract

To provide an exhaust gas catalyst using a fired aluminum phosphate body with more excellent performance, and a method for producing it. (1) An exhaust gas purification catalyst including at least one platinum-group metal selected from the group consisting of Pt, Rh and Pd having a mean particle diameter of between 0.50 nm and 2.0 nm, supported on a tridymite-type fired aluminum phosphate body. (2) A method for producing an exhaust gas purification catalyst, including the steps of: firing aluminum phosphate obtained from an aqueous solution prepared to a pH of 3.5 to 4.5, at a temperature of between 1000° C. and 1200° C. for 2 hours or longer, to obtain a fired aluminum phosphate body, and supporting at least one type of platinum-group metal selected from the group consisting of Pt, Rh and Pd on the fired aluminum phosphate body.

Find Patent Forward Citations

Loading…