Hydrogenation of mixed aromatic nitrobodies

Details Hydrogenation of mixed aromatic nitrobodies Hydrogenation of mixed aromatic nitrobodies

1977-09-28

1980-01-22

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

562458, C07C 8511

Patent

active

041850360

ABSTRACT:
Process, batch or continuous, for hydrogenating a mixture of an aromatic mononitro-non-amino compound and an aromatic dinitro and/or an aromatic mononitromonoamino compound, which process comprises reacting hydrogen and a homogeneous or heterogeneous liquid mixture of at least 25 weight % of an aromatic mononitro-non-amino compound and at least 25 weight % of at least one compound selected from aromatic dinitro compounds and aromatic mononitromonoamino compounds, for example, a 25:75 weight % mixture of p-nitroaniline and o-nitrotoluene, with vigorous mixing, in the presence of 0.05-1.0 weight % of an hydrogenation catalyst derived from a metal of Group VIII of the Periodic Chart of the Elements, at a temperature of 75.degree.-225.degree. C. and a pressure of 50-800 p.s.i.g.

REFERENCES:
patent: 2252099 (1941-08-01), Rosen
patent: 2402423 (1946-06-01), Mason
patent: 2894036 (1959-07-01), Graham
patent: 3230259 (1966-01-01), Levy
patent: 3499034 (1970-03-01), Gonzalez

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