Preparation of aromatic amines

US4429155A · kind A · utility

Assignee

• BASF SE

Inventors

• Norbert Goetz
• Peter Jacobs · Havelsee, DE
• Leopold Hupfer · Friedelsheim, DE
• Herbert Toussaint · Bischofswerda, DE
• Wolfgang Reiss · Ludwigshafen, DE

Key dates

• Filing date: Dec 1, 1981
• Grant date: Jan 31, 1984
• Expiry date: Dec 1, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J23/89
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Aromatic amines (anilines) are obtained directly or via the corresponding cycloaliphatic amines by an aminating/hydrogenating reaction of phenols with ammonia and hydrogen over a supported palladium catalyst which also contains elements from group 1b, 2b or 7b of the periodic table as well as iron, cobalt or nickel, as such or in the form of their compounds, and, preferably, an inorganic base, said catalysts also having dehydrogenating properties.