Process for producing aniline with a permselective palladium and

Details Process for producing aniline with a permselective palladium and Process for producing aniline with a permselective palladium and

1978-04-24

1979-12-18

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252472, C07C 8511

Patent

active

041794702

ABSTRACT:
A process for producing aniline, residing in a catalytic hydrogenation of nitrobenzene by using hydrogen in a gaseous phase at a temperature of from 20.degree. to 260.degree. C. and under atmospheric pressure, using a membrane catalyst which is essentially an alloy of palladium and ruthenium taken in a mass percent ratio of 88-98:12-2, respectively, permselective to hydrogen; hydrogenation being carried out by feeding nitrobenzene on the one side of the membrane catalyst and hydrogen, on the other side thereof. The process enables one to obviate purification of the end product from the residual catalyst and thereby to avoid losses of metals of the platinum group, as well as to effect hydrogenation under milder conditions without the formation of any by-products.

REFERENCES:
patent: 3177258 (1965-04-01), Rylander et al.
patent: 3455845 (1969-07-01), Wicke et al.
patent: 3962337 (1976-06-01), Drake
patent: 4005143 (1977-01-01), Bohm et al.
patent: 4026944 (1977-05-01), Bohm et al.

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