Exhaust gas purifying catalyst and process for purifying...

Details Exhaust gas purifying catalyst and process for purifying... Exhaust gas purifying catalyst and process for purifying...

2006-11-28

2006-11-28

Sample, David (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And group viii containing

C502S077000, C423S213500, C423S239200

Reexamination Certificate

active

07141526

ABSTRACT:
An exhaust gas purifying catalyst characterized by having zeolite subjected to ion exchange with cerium and deposited on cerium oxide as well and containing platinum and/or palladium, and a process for purifying the exhaust gas using the catalyst. The catalyst, by using zeolite and a noble metal, is enabled to acquire improved durability.

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patent: 5762892 (1998-06-01), Kasahara et al.
patent: 2001/0053340 (2001-12-01), Noda et al.
patent: 10-156144 (1998-06-01), None
patent: 11-90235 (1999-04-01), None
patent: WO 01/37978 (2001-05-01), None
patent: WO 03/045547 (2003-06-01), None

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