Acidic multimetallic catalytic composite

Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants


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252442, B01J 2708, B01J 2710




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 zinc component, and a halogen component with a porous carrier material. The platinum group, zinc, 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 0.01 to about 5 wt. % zinc, 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 metal 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 zinc is preferably present in an oxidation state above that of the elemental metal.

patent: 3950243 (1976-04-01), Antos
patent: 4003955 (1977-01-01), Hayes
patent: 4061592 (1977-12-01), Buss


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