| abstract |
A hydrogenation process of aromatic polyamines and dipolylamines comprising the steps of: - reacting, in a reactor, at least one aromatic amine with hydrogen in the presence of a catalyst system, in which the catalyst system comprises at least one heterogeneous catalyst, wherein the heterogeneous catalyst comprises a metal selected from the group consisting of Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and / or Pt and in which the Catalyst system further comprises an organic nitro compound - obtaining a reaction product from the reaction. |