Patent · US Active

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

US11339115B2 · kind B2 · utility

0Cited by

13References

16Claims

0Family size

Assignee

BASF SE

Inventors

Barbara Wucher · Ludwigshafen, DE
Thomas Heidemann · Viernheim, DE
Michael FRIKO · Ludwigshafen, DE
Christian Bechtold · Ludwigshafen, DE

Key dates

Filing date	Oct 8, 2018
Grant date	May 24, 2022
Priority date	—
Expiry date	Oct 9, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J23/8993
WIPO fieldChemical engineering
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.