Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1975-06-03
1976-11-09
Douglas, Winston A.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
B01J 2346
Patent
active
039909980
ABSTRACT:
The instant invention relates to high surface area multilayered oxide supports coated with ruthenium of the type Ru-MgO-MgAl.sub.2 O.sub.4 -MgAl.sub.2 O.sub.4 +Mg.sub.2 SiO.sub.4 -Core. The system comprises ruthenium on a critical amount of free MgO, i.e., at least 2 wt. % minimum, on pre-reacted Al.sub.2 O.sub.3 which itself is on a monolithic ceramic substrate. This combination demonstrates the desirable, and previously unachievable characteristic of resistance to ruthenium volatilization and agglomeration, coupled with high catalytic activity. The high surface area oxides (MgO+Al.sub.2 O.sub.3) are strongly bonded to and reacted with the monolithic core substructure so as to possess physical strength. Ruthenium catalyst systems prepared utilizing the supported support (multilayered mixed oxides) method disclosed by the instant invention are useful for the treatment of waste gases, particularly exhaust gases from internal combustion engines and stationary sources and the removal of oxides of nitrogen therefrom.
REFERENCES:
patent: 3315008 (1967-04-01), Abell et al.
patent: 3615166 (1971-10-01), Hindin et al.
patent: 3835069 (1974-09-01), Gandhi et al.
patent: 3839224 (1974-10-01), Yonehara et al.
patent: 3850847 (1974-11-01), Graham et al.
patent: 3880776 (1975-04-01), Box, Jr. et al.
DeLuca John P.
McVicker Gary B.
Murrell Lawrence L.
Allocca Joseph J.
Douglas Winston A.
Exxon Research and Engineering Company
Wright William G.
LandOfFree
High surface area ruthenium bonding supports on monolithic ceram does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High surface area ruthenium bonding supports on monolithic ceram, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High surface area ruthenium bonding supports on monolithic ceram will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1724437