Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1979-06-11
1981-02-10
Garvin, Patrick
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252442, B01J 2708, B01J 2710
Patent
active
042500559
ABSTRACT:
An acidic multimetallic catalytic composite especially useful for converting hydrocarbons comprises a combination of catalytically effective amounts of a platinum group component, a nickel component, a uranium component, and a halogen component with a porous carrier material. The platinum group, uranium, nickel, and halogen components are present in the multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum group metal, about 0.1 to about 10 wt. % uranium, about 0.05 to about 5 wt. % nickel, and about 0.1 to about 3.5 wt. % halogen. Moreover, these metallic components are uniformly dispersed throughout the porous carrier material in carefully controlled oxidation states such that substantially all of the platinum group component is present therein in the elemental metallic state, substantially all of the catalytically available nickel component is present in the elemental metallic state or in a state which is reducible to the elemental metallic state under hydrocarbon conversion conditions, or in a mixture of these states, while substantially all of the uranium component is present in an oxidation state above that of the elemental metal.
REFERENCES:
patent: 3929624 (1975-12-01), Davies et al.
patent: 3950243 (1976-04-01), Antos
patent: 4003955 (1977-01-01), Hayes
patent: 4194991 (1980-03-01), Flagg et al.
Antos George J.
Flagg John F.
Garvin Patrick
Hoatson Jr. James R.
McBride Thomas K.
Page II William H.
UOP Inc.
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