Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1973-12-10
1976-06-29
Shaver, Paul F.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252466PT, B01J 2316
Patent
active
039667901
ABSTRACT:
Catalysts having good high temperature stability which are particularly useful for selected high temperature reactions are disclosed as are methods for their preparation and use. The catalytically-active materials include platinum group metal deposited on a catalytic slip or composite which contains a mixture of alumina, selected VIB metal oxides, and a metallic oxide or oxide mixture wherein the metal or metals are selected IIA, IVA, and IIA-IVA mixtures, selected IIA and IVB mixtures and selected IVA and IVB mixtures. The slips or carrier compositions are calcined at a temperature of at least 500.degree.C. before deposition of platinum group metal and characterized by having a surface area of at least 20 m.sup.2 g after calcination at a temperature of 1200.degree.C. for two hours.
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patent: 3002920 (1961-10-01), Porter et al.
patent: 3360330 (1967-12-01), Hoekstra
patent: 3679768 (1972-07-01), Kmecak et al.
patent: 3686340 (1972-07-01), Patrick et al.
patent: 3692863 (1972-09-01), Kmecak et al.
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Hindin Saul G.
Pond George R.
Engelhard Minerals & Chemicals Corporation
Shaver Paul F.
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