Cobalt catalysts

US5696048A · kind A · utility

Assignee

• BASF SE

Inventors

• Boris Breitscheidel · Fulda, DE
• Peter Polanek · Weinheim, DE
• Guido Voit · Freinsheim, DE
• Tom Witzel · Ludwigshafen, DE
• Gerd Linden · Heidelberg, DE
• Michael Hesse · Westlake Village, US

Key dates

• Filing date: Apr 30, 1996
• Grant date: Dec 9, 1997
• Expiry date: Apr 30, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/48
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Cobalt catalysts whose catalytically active composition comprises from 55 to 98% by weight of cobalt, from 0.2 to 15% by weight of phosphorus, from 0.2 to 15% by weight of manganese and from 0.05 to 5% by weight of alkali metal, calculated as oxide, are prepared by calcining the catalyst composition, reducing it at final temperatures of from 200.degree. to 400.degree. C. in a stream of hydrogen and subsequently surface-oxidizing it by treatment in a stream of air at final temperatures of from 20.degree. to 60.degree. C. and can be used in a process for hydrogenating organic nitriles and/or imines.