Hydrogenation of aromatic compounds in which at least one amino group is bonded to an aromatic nucleus
AssigneeBASF SE
InventorsHeinz Rutter, Thomas Ruhl, Boris Breitscheidel, Jochem Henkelmann, Andreas Henne, Thomas Wettling
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Abstract
Aromatic compounds in which at least one amino group is bonded to an aromatic nucleus are catalytically hydrogenated in the liquid phase by a process in which the catalyst consists essentially of ruthenium and, optionally at least one metal of subgroup I, VII or VIII in an amount of from 0.01 to 30% by weight, based on the total weight of the catalyst, applied to a carrier which has a mean pore diameter of at least 0.1 .mu.m and a surface area of not more than 15 m.sup.2 /g.
Claims24
A process for catalytically hydrogenating aromatic amines in which at least one amino group is bonded to an aromatic nucleus which comprises bringing at least one of said aromatic amines as the reactant in a liquid phase into contact with free hydrogen in the presence of a carrier supported metal catalyst consisting essentially of ruthenium and optionally at least one additional metal of subgroup I, VII or VIII of the Periodic Table or mixtures thereof, said metal catalyst being applied to a carrier having a mean pore diameter of at least 0.1 .mu.m and a surface area of not more than 15 m.sup.2 /g in an amount of from 0.01 to 30% by weight, based on the total weight of both the carrier and the applied metal.
A carrier supported metal hydrogenation catalyst consisting essentially of the metal ruthenium and optionally at least one additional metal of subgroup I, VII or VIII of the Periodic Table or mixtures thereof, said metal catalyst being applied to a carrier having a mean pore diameter of at least 0.1 up to 200 .mu.m and a surface area of from 0.2 up to 15 m.sup.2 /g in an amount of from 0.01 to 30% by weight, based on the total weight of both the carrier and the applied metal.
Dependencies are inferred from the claim text.