A PROCESS FOR THE PREPARATION OF AN ENVIRONMENT FRIENDLY CATALYST FOR LOW TEMPERATURE CONVERSION OF NITROBENZENE TO ANILLINE IN VAPOUR PHASE FIXED BED REACTORS.

摘要

The invention relates to an environment friendly transition metal catalyst (free from hazardous chromium component) for low temperature conversion of nitrobenzene to aniline in vapour phase at about 140°C to 230°C, preferably 150°C to 220°C. The catalyst of the present invention contains oxide of the said metal promoted with the oxide or oxides of one or two elements, preferably oxide of one element of the lanthanide series and is supported on a composite support material in an optimized proportion of oxides of Group IIA, IIIA and IVA elements with improved total surface area & copper surface area, as well as an optimized proportion of binder, resulting in a more active and selective and stable catalyst suitable for commercial fixed bed reactor applications.