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 intermet...

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Main Authors ROTHER, Joerg, MUELLER, Imke, LIZANDARA, Carlos, BECHTEL, Juergen, SCHUNK, Stephan A, FENYN, Michaela, KUSCHEL, Andreas, TITLBACH, Sven, DREBOV, Nedko, MAIXNER, Stefan, HALABI, Mohamed, HINRICHS, Matthias
Format Patent
LanguageEnglish
Hungarian
Published 28.06.2024
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary: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 AxBy wherein: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.
Bibliography:Application Number: HUE18713991