公开(公告)号：US20190233364A1

公开(公告)日：2019-08-01

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 ,  C07C211/50 ,  B01J23/89

CPC classification number: C07C209/36 ,  B01J23/892 ,  B01J2523/828 ,  B01J2523/847 ,  C07C209/82 ,  C07C211/50

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.

公开(公告)号：US20200270197A1

公开(公告)日：2020-08-27

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 ,  B01J23/89 ,  B01J21/18

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：US20190241501A1

公开(公告)日：2019-08-08

申请号：US16340478

申请日：2017-10-09

Applicant: BASF SE

Inventor： Armin LANGE DE OLIVEIRA ,  Ines LOTTENBURGER ,  Christian BECHTOLD ,  Thomas HEIDEMANN

IPC: C07C209/72 ,  C07C211/36

Abstract: 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, TiO2 and ZrO2, and with hydrogen under hydrogenating conditions.