Method for producing aromatic amines

US8809588B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Lucia Königsmann · Stuttgart, DE
• Ekkehard Schwab · Neustadt, DE
• Michael Hesse · Westlake Village, US
• Christian Schneider · Mannheim, DE
• Thomas Heidemann · Viernheim, DE
• Celine Liekens · Ekeren, BE
• Jutta Bickelhaupt · Reichelsheim, DE
• Dirk Theis · Ludwigshafen, DE

Key dates

• Filing date: May 5, 2010
• Grant date: Aug 19, 2014
• Expiry date: May 8, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/36
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing aromatic amines by catalytically hydrogenating the corresponding aromatic nitro compound, which comprises using a copper catalyst with a support comprising SiO2, the SiO2 having been prepared by wet grinding and subsequent spray drying.