Bayer Materialscience Ag

Aventis Research & Technologies Gmbh & Co Kg

Holger Orzesek

Uwe Dingerdissen

Hans-Georg Pirkl

Peter Lehner

Stephan Schubert

Knut Sommer

Karl-Heinz Wilke

Franz-Ulrich Von Gehlen

Rolf Schulz

Andre Lago

Ido Schwarz

Susanne Buchholz

Franz-Ulrich Gehlen

Wilhelm Maier

Susanne Bucholz

Aromatic amines are produced by adiabatic hydrogenation of nitroaromatic compounds in the gas phase on one or more fixed catalysts. The nitroaromatic reactant is passed over the catalyst under pressure and at elevated temperature with hydrogen, water, optionally nitrogen and substantially in the absence of the aromatic amine produced from the nitroaromatic.

Process for producing aromatic amines

Process for preparing propene oxide, in which a mixture of propene and oxygen or an oxygen-containing gas is reacted at a temperature in the range from 150 to 500&deg; C., in the presence or absence of a catalyst, in a reactor, wherein all or part of the interior of the reactor is lined with inert materials. The inert material used is at least one of the materials of the following group: one or more noble metals of transition group VIII of the Periodic Table, in particular gold, titanium and tantalum, glass, enamel, quartz, ceramic and Teflon. The selectivity to propene oxide is >60%.

Method for producing propene oxide

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Gelsenkirchen-Buer, Germany

Holger Orzesek