A method for the catalytic reduction of nitrobenzene to aniline in the liquid phase

The method of the catalytic reduction of nitrobenzene to aniline in the liquid phase, where the hydrogenation is conducted in two reaction zones, where the first zone operates at the temperatures from 150°C to 250°C and the nitrobenzene concentration is kept within the range from 0.05% to 0.5% and t...

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Bibliographic Details
Main Authors PETRISKO, MIROSLAV, PASEK, JOSEF
Format Patent
LanguageEnglish
French
German
Published 04.07.2012
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The method of the catalytic reduction of nitrobenzene to aniline in the liquid phase, where the hydrogenation is conducted in two reaction zones, where the first zone operates at the temperatures from 150°C to 250°C and the nitrobenzene concentration is kept within the range from 0.05% to 0.5% and the mixture from the first zone is hydrogenated in the second zone at 50°C to 100°C to the residual nitrobenzene concentration of maximally 10 ppm.
Bibliography:Application Number: EP20110194216