Aniline: Nitrobenzene Reduced with Iron and Acid, Cain 1919

Nitrobenzene fed slowly onto cast-iron borings with a little hydrochloric acid and steam is reduced to aniline, the base of the dye industry. The iron ends up as oxide; the aniline is steam-distilled off, settled and finished in a vacuum still. Cain (1919): 1,000 lb nitrobenzene to 9 cwt of borings over about ten hours. The picture: our diagram of the reduction.

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About a day, then settling

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Nitrobenzene: Benzene Nitrated with Mixed Acid, Cain 1919

by Charlie

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