PROCESS FOR THE PREPARATION OF 1-NAPHTHYLAMINE

摘要

1. Process for the preparation of 1-naphthylamine by the catalytic hydrogenation of 1-nitronaphthalene at elevated temperature and elevated pressure, in the presence of inert organic solvents miscible with water, characterized in that purified 1-nitronaphthalene, which is virtually free of sulphur compounds and isomeric 2-nitronaphthalene is hydrogenated at temperatures of 150 to 250 degrees C and pressures of 50 to 300 bar, in the presence of platinum/activated charcoal, the average residence time of the reaction mixture in the reactor being 3 to 30 minutes.