Basf Se Corporation

Celine Liekens

Ekkehard Schwab

Christian Schneider

Michael Hesse

Thomas Heidemann

Lothar Seidemann

Lucia Königsmann

Dieter Stuetzer

Lucia Koenigsmann

Dieter Stützer

Jutta Bickelhaupt

Dirk Theis

The invention relates to a process for preparing aromatic amines by catalytically hydrogenating the corresponding aromatic nitro compound, which comprises using a copper catalyst with a support comprising SiO, the SiOhaving been prepared by wet grinding and subsequent spray drying.

Method for producing aromatic amines

A process for preparing aromatic amines by catalytic hydrogenation of the corresponding nitro compound in a fluidized-bed reactor, in which a gaseous reaction mixture comprising the nitro compound and hydrogen flows from the bottom upward through a heterogeneous particulate catalyst forming a fluidized bed, wherein the fluidized bed is provided with internals which divide the fluidized bed into a plurality of cells arranged horizontally in the fluidized-bed reactor and a plurality of cells arranged vertically in the fluidized-bed reactor, with the cells having cell walls which are permeable to gas and have openings which ensure an exchange number of the heterogeneous, particulate catalyst in the vertical direction in the range from 1 to 100 liters/hour per liter of reactor volume, is proposed.

Process for preparing aromatic amines in a fluidized-bed reactor

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Antwerp, Belgium

Celine Liekens