Activated multimetallic catalytic composite comprising pyrolized

Details Activated multimetallic catalytic composite comprising pyrolized Activated multimetallic catalytic composite comprising pyrolized

1978-10-27

1979-11-20

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252460, 252466PT, 252472, B01J 2710, B01J 2708, B01J 2346, B01J 2342

Patent

active

041750560

ABSTRACT:
A novel activated multimetallic catalytic composite especially useful for the conversion of hydrocarbons comprises a combination of a cataytically effective amount of pyrolyzed ruthenium carbonyl 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, pyrolyzed ruthenium carbonyl 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. % of the uniformly dispersed platinum group metal, about 0.01 to about 2 wt. % of carbonyl-derived ruthenium and about 0.1 to about 3.5 wt. % of halogen. A key feature associated with the preparation of the subject catalytic composite is reaction of a ruthenium carbonyl complex with a porous carrier material containing a uniform dispersion of a platinum group metal maintained in the elemental state, whereby the interaction of the ruthenium moiety with the platinum group moiety is maximized due to the platinophilic (i.e. platinum-seeking) propensities of the carbon monoxide ligand used in the ruthenium reagent.

REFERENCES:
patent: 2798051 (1957-07-01), Blcek
patent: 2818394 (1957-12-01), Haemsel et al.
patent: 2846488 (1958-08-01), Miller
patent: 3591649 (1971-07-01), Kroll et al.
patent: 3909394 (1975-09-01), Hayes

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