公开(公告)号：US11339115B2

公开(公告)日：2022-05-24

申请号：US16649885

申请日：2018-10-08

Applicant: BASF SE

Inventor： Barbara Wucher ,  Thomas Heidemann ,  Michael Friko ,  Christian Bechtold

IPC: C07C209/36 ,  B01J21/18 ,  B01J23/89

Abstract: 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.

公开(公告)号：US10538478B2

公开(公告)日：2020-01-21

申请号：US16340593

申请日：2017-10-10

Applicant: BASF SE

Inventor： Armin Lange de Oliveira ,  Barbara Wucher ,  Christian Bechtold ,  Michael Friko ,  Renate Hempel

IPC: C07C209/36 ,  B01J23/89 ,  C07C211/50 ,  C07C209/82

Abstract: 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.