Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1987-06-15
1988-07-26
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502 65, 502261, 502262, 502302, 502304, 4232135, B01J 2104, B01J 2310, B01J 2340
Patent
active
047600446
ABSTRACT:
This invention relates to a catalytic composite comprising a mixture of a primary refractory inorganic oxide having dispersed thereon at least one first active component selected from the group consisting of rare earth oxides and a secondary support consisting of zirconia, titania or cerium oxide having dispersed thereon at least one second active component selected from the group consisting of metals which form a stable sulfide said mixture having at least one main catalytic metal selected from the group consisting of platinum, palladium, rhodium, ruthenium and iridium deposited thereon. This invention also relates to a method of manufacturing said catalytic composite. Finally a method to minimize the formation of H.sub.2 S when automotive exhaust is contacted with a catalytic composite is also claimed.
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G. J. Barnes and J. C. Summers, "Hydrogen Sulfide Formation Over Automotive Oxidation Catalysts", Soc. of Automotive Engineers, Paper No. 750093.
Joy, III George C.
Lester George R.
Marinangeli Richard E.
Allied-Signal Inc.
McBride Thomas K.
Molinaro Frank S.
Shine W. J.
Snyder Eugene I.
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