Basf Se Corporation

Christian Bechtold

Thomas Heidemann

Armin Lange De Oliveira

Barbara Wucher

Michael Friko

Bilge Yilmaz

Sebastian Ahrens

Renate Hempel

Joana Coelho Tsou

Frank Kiesslich

Ines Lottenburger

Veronika Will

The present invention relates to a process for continuous hydrogenation of a nitro compound to the corresponding amine in a liquid reaction mixture comprising the nitro compound in a reaction chamber in the presence of a supported catalyst which comprises as the active component at least one element from groups 7 to 12 of the periodic table of the elements, wherein ammonia is added to the reaction chamber during the hydrogenation.

Increasing the catalyst selectivity in the continuous hydrogenation of nitro compounds by adding ammonia

Process for hydrogenating toluenediamine (TDA) tar containing TDA and high boilers relative to TDA, including the step of contacting the toluenediamine tar with a heterogeneous hydrogenation catalyst comprising at least one metal selected from the group consisting of Ni, Co, Ru, Pd, Pt on at least one catalyst support selected from the group consisting of carbon, TiOand ZrO, and with hydrogen under hydrogenating conditions.

Process for hydrogenating toluenediamine (TDA) tar

The present invention relates to a process for continuous hydrogenation of a nitro compound to the corresponding amine in a liquid reaction mixture comprising the nitro compound in the presence of a supported catalyst which comprises as the active component at least one element from groups 7 to 12 of the periodic table of the elements, wherein the hydrogenation is performed in the presence of at least one salt selected from the group consisting of the salts of the alkali metals, alkaline earth metals and of the rare earth metals and to a supported catalyst for continuous hydrogenation of a nitro compound to the corresponding amine in a liquid reaction mixture comprising the nitro compound which comprises as the active component at least one element from groups 7 to 12 of the periodic table of the elements and one salt of the alkali metals, alkaline earth metals or of the rare earth metals.

Catalyst modification with alkali metal, alkaline earth metal or rare earth metal ions in the continuous liquid-phase hydrogenation of nitro compounds

The present invention relates to a catalyst for dehydroaromatizing C-C-aliphatics, said catalyst being obtainable by twice treating a zeolite from the group of MFI and MWW with NH-containing mixtures, in each case with subsequent drying and calcination. The catalyst comprises molybdenum and, if appropriate, as further elements, Cu, Ni, Fe, Co, Mn, Cr, Nb, Ta, Zr, V, Zn and/or Ga. The present invention further provides a process for dehydroaromatizing a mixture comprising C-C-aliphatics by conversion in the presence of the catalyst.

Catalyst for the dehydroaromatisation of methane and mixtures containing methane

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Ludwigshafen, Germany

Christian Bechtold