Hydrogenation of nitriles over Raney catalysts

US6677486B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Andreas Ansmann · Wiesloch, DE
• Christoph Benisch · Mannheim, DE
• Frank Funke · Bischofswerda, DE
• Frank Ohlbach · Mülheim an der Ruhr, DE
• Martin Merger · Bischofswerda, DE

Key dates

• Filing date: Nov 7, 2001
• Grant date: Jan 13, 2004
• Expiry date: Nov 7, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/48
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Nitriles are hydrogenated to primary amines over an activated, alpha-Al2O3-containing, macroporous Raney catalyst based on an alloy of aluminum and at least one transition metal selected from the group consisting of iron, cobalt and nickel, and, if desired, one or more further transition metals selected from the group consisting of titanium, zirconium, chromium and manganese, which is obtainable by a process comprising the steps in the order (a)-(f):(a) preparing a kneadable composition comprising the alloy, a shaping aid, water and a pore former;(b) shaping the kneadable composition to form a shaped body;(c) calcining the shaped body;(d) activating the calcined shaped body by treatment with aqueous alkali metal hydroxide solution;(e) rinsing the shaped catalyst body with aqueous alkali metal hydroxide solution;(f) rinsing the shaped catalyst body with water.