Catalyst having metal in reduced quantity and reduced...

Details Catalyst having metal in reduced quantity and reduced... Catalyst having metal in reduced quantity and reduced...

2003-11-07

2011-11-08

Lorengo, Jerry A (Department: 1731)

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S302000, C502S303000, C502S325000, C502S439000

Reexamination Certificate

active

08053387

ABSTRACT:
The invention contemplates a method of making a catalytic material, and uses of the material. The catalytic material is made by depositing catalytic metals, such as gold or platinum, on substrate materials, such as lanthanum-doped ceria or other oxides. The catalytic metal, which comprises both crystalline and non-crystalline structures, is treated, for example with aqueous basic NaCN solution, to leach away at least some of the crystalline metallic component. The remaining noncrystalline metallic component associated with the substrate exhibits catalytic activity that is substantially similar to the catalyst as prepared. The use of the catalyst in an apparatus such as a reactor or analytic instrument is contemplated, as is the use of the catalyst in efficient, cost-effective reactions, such as removal of carbon monoxide from fuel gases, for example by performing the water gas shift reaction.

REFERENCES:
patent: 4040981 (1977-08-01), Inaba et al.
patent: 4051072 (1977-09-01), Bedford et al.
patent: 4113467 (1978-09-01), Harrington
patent: 4292282 (1981-09-01), Welsh et al.
patent: 4499204 (1985-02-01), Vanderspurt et al.
patent: 4557760 (1985-12-01), Erpenbach et al.
patent: 5431892 (1995-07-01), Toyabe et al.
patent: 5624977 (1997-04-01), Takarada et al.
patent: 6180072 (2001-01-01), Veal et al.
patent: 6239065 (2001-05-01), Schulz et al.
patent: 6455023 (2002-09-01), Gadkaree et al.
patent: 6723298 (2004-04-01), Baumann et al.
patent: 2002/0147103 (2002-10-01), Ruettinger et al.
patent: 2006/0128565 (2006-06-01), Flytzani-Stephanopoulos et al.
patent: 1138378 (2001-10-01), None
patent: 10036314 (1998-02-01), None
patent: WO 00/37173 (2000-06-01), None
patent: WO 00/68277 (2000-11-01), None
patent: WO 01/94009 (2001-12-01), None
patent: WO 02/20700 (2002-03-01), None
W. Liu and M. Flytzani-Stephanopoulos. Total oxidation of carbon monoxide over methane over transition metal-fluorite oxide composite catalysts. J. Catal. 153 (1995) 304-332.
Bartlett et al. Solution Mining, 2nd Edition, Gordon and Breach Science Publishers, (1998) 17-18, 20-22, 39.
Internatioanal Search Report for PCT/US2003/35562 dated Apr. 16, 2004.

Affiliated with

Also associated with

Rating

Catalyst having metal in reduced quantity and reduced... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalyst having metal in reduced quantity and reduced..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst having metal in reduced quantity and reduced... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4253997