Superactive multimetallic catalytic composite comprising platinu

Details Superactive multimetallic catalytic composite comprising platinu Superactive multimetallic catalytic composite comprising platinu

1978-10-30

1979-11-27

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252466PT, 252472, B01J 2364, B01J 2104, C10G 3508

Patent

active

041760883

ABSTRACT:
A novel superactive multimetallic reduced catalytic composite especially useful in the conversion of hydrocarbons comprises a combination of a catalytically effective amount of an adsorbed rhenium oxide component with a porous carrier material containing a uniform dispersion of a catalytically effective amount of a platinum group component which is maintained in the elemental metallic state. In a highly preferred embodiment, this novel catalytic composite also contains a catalytically effective amount of a halogen component. The platinum group component, adsorbed rhenium oxide component and optional halogen component are preferably present in the multimetallic catalytic composite in amounts, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 5 wt. % rhenium and about 0.1 to about 3.5 wt. % halogen. A key feature associated with the preparation of the subject catalytic composite is reaction of a rhenium oxide reagent with a porous carrier material containing a uniform dispersion of a platinum group metal maintained in the elemental state, whereby the interaction of the rhenium oxide moiety with the platinum group metal moiety is maximized due to the platinophilic (i.e. platinum-seeking) propensities of the oxygen ligands used in the rhenium reagent.

REFERENCES:
patent: 3846343 (1974-11-01), Erickson et al.
patent: 3956103 (1976-05-01), Antos
patent: 4061592 (1977-12-01), Buss

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