Dehydrogenation method using sulfided nonacidic multimetallic ca

Details Dehydrogenation method using sulfided nonacidic multimetallic ca Dehydrogenation method using sulfided nonacidic multimetallic ca

1976-09-10

1977-09-13

O'Keefe, Veronica

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260669R, 260677R, 2606833, C07C 518

Patent

active

040482448

ABSTRACT:
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them at dehydrogenation conditions, with a sulfided nonacidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, an iridium component, a tin or lead component, an alkali or alkaline earth component and a sulfur component with a porous carrier material. This sulfided nonacidic multimetallic catalytic composite has the metallic components uniformly dispersed throughout the porous carrier material, the platinum or palladium and iridium components in the sulfided state or in a mixture of the elemental metallic state and the sulfided state, and the alkali or alkaline earth and tin or lead components in an oxidation state above the elemental metal. This composite has been sulfided, moreover, prior to use in the dehydrogenation method and after the platinum or palladium and iridium components thereof have been reduced to the elemental metallic state.

REFERENCES:
patent: 3291855 (1966-12-01), Haensd
patent: 3696167 (1972-10-01), Juguin et al.
patent: 3718578 (1973-02-01), Buss
patent: 3937746 (1976-02-01), Croce et al.
patent: 3939220 (1976-02-01), Rausch

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