Basf Aktiengesellschaft

Basf Se Corporation

Frederik Van Laar

Ekkehard Schwab

Hartwig Voss

Ulrich Penzel

Steffen Oehlenschlaeger

Konrad Morgenschweis

Wolfgang Mackenroth

Steffen Oehlenschläger

Georg Krug

Dominic Vanoppen

Thomas Beuermann

Bernd Weidner

Dietrich Tittelbach-Helmrich

The invention relates to a process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, in which a fluid reaction mixture which comprises amines and from which the catalysts are separated off is formed in a reactor. After the catalysts have been separated off, a measurement of the absorption of UV/VIS radiation by the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.

Method for producing aromatic amines or aliphatic amino alcohols

The present invention provides a process for hydrogenating aromatic nitro compounds to the corresponding amines in the presence of hydrogenation catalysts, which comprises using hydrogenation catalysts in which nickel and platinum are present on a support in the form of an alloy having an atomic ratio of nickel to platinum in the alloy of between 30:70 and 70:30.

Method for the production of amines

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Limburgerhof, Germany

Frederik Van Laar