Purification catalyst for exhaust gas, production method...

Details Purification catalyst for exhaust gas, production method... Purification catalyst for exhaust gas, production method...

2007-08-21

2007-08-21

Nguyen, Cam N. (Department: 1754)

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S302000, C502S303000, C502S304000, C502S326000, C502S333000

Reexamination Certificate

active

10919486

ABSTRACT:
Pd-based composite oxide containing at least one element selected from rare earth metals is used. Therefore, a composite oxide having the same amount of noble metal as in a conventional technique can be burned at a lower temperature. As a result, a purification catalyst for exhaust gas having superior purification properties in which deterioration of Pd dispersion by crystallization is prevented, and a production method therefor can be provided.

REFERENCES:
patent: 4110254 (1978-08-01), Lauder
patent: 4127510 (1978-11-01), Harrison et al.
patent: 4182694 (1980-01-01), Lauder
patent: 4492769 (1985-01-01), Blanchard et al.
patent: 5234881 (1993-08-01), Narula et al.
patent: 5494878 (1996-02-01), Murakami et al.
patent: 5691263 (1997-11-01), Park et al.
patent: 5977017 (1999-11-01), Golden
patent: 6043188 (2000-03-01), Yeo
patent: 6069111 (2000-05-01), Yamamoto et al.
patent: 6090744 (2000-07-01), Koda et al.
patent: 6569803 (2003-05-01), Takeuchi
patent: 6576200 (2003-06-01), Yamamoto et al.
patent: 6893998 (2005-05-01), Shigapov et al.
patent: 1042092 (1990-05-01), None
patent: 61-209045 (1986-09-01), None
patent: 03-068451 (1991-03-01), None
patent: 06-100319 (1994-04-01), None
patent: 06-246155 (1994-09-01), None
patent: 10-277393 (1998-10-01), None
Abstract of JP 06-209045, issued Sep. 17, 1986 in Japan.
Abstract of JP 04-027433, issued Jan. 10, 1992 in Japan.
Abstract of JP 61-209045, issued Sep. 17, 1986 in Japan.

Affiliated with

Also associated with

Rating

Purification catalyst for exhaust gas, production method... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Purification catalyst for exhaust gas, production method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Purification catalyst for exhaust gas, production method... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3867543