Patent · US Expired

Multimetallic catalyst and process for preparing substituted aromatic amines

US6316381A · kind A · utility

2Cited by

13References

2Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Emmanuel Auer · Frankfurt, DE
Andreas Freund · Kleinostheim, DE
Michael Gross · Salem, DE
Rolf Hartung · Blaubeuren, DE

Key dates

Filing date	Jul 16, 1997
Grant date	Nov 13, 2001
Priority date	—
Expiry date	Jul 16, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J23/889
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A multimetallic catalyst for hydrogenation of substituted nitroaromatic compounds to give the corresponding aromatic amines. By doping iridium with at least one element from the group manganese, cobalt, iron, nickel, copper and ruthenium, a catalyst is obtained which is characterized by high selectivity.

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