Basf Se Corporation

Joerg Rother

Stephan Andreas Schunk

Stefan Maixner

Juergen Bechtel

Michaela Fenyn

Matthias Hinrichs

Sven Titlbach

Andreas Kuschel

Imke Britta Mueller

Carlos Lizandara

Mohamed Halabi

Nedko Stefanov Drebov

A process for preparing an aromatic isocyanate by direct carbonylation of a nitro aromatic compound by reacting the nitro aromatic compound with carbon monoxide in the presence of a catalyst, characterized in that the catalyst contains a multi metallic material comprising one or more binary intermetallic phases of the general formula ABwherein:

Heterogeneous catalysts for the direct carbonylation of nitro aromatic compounds to isocyanates

A process for preparing an aromatic isocyanate by direct carbonylation of a nitro aromatic compound by reacting the nitro aromatic compound with carbon monoxide in the presence of a catalyst, characterized in that the catalyst contains a multi metallic material comprising one or more binary intermetallic phases of the general formula ABwherein: A is one or more element selected from Ni, Ru, Rh, Pd, Ir, Pt and Ag, B is one or more element selected from Sn, Sb, Pb, Zn, Ga, In, Ge and As, x is in the range 0.1-10, y in is in the range 0.1-10.

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Heidelberg, Germany

Joerg Rother