Raney nickel catalysts, a method for producing said raney nickel catalysts and the use of the same for hydrogenating organic compounds

US6395934B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gerhard Wegener · Mettmann, DE
• Eckart Waldau · Bocholt, DE
• Bernd Pennemann · Moitzfeld, DE
• Bodo Temme · Munster, DE
• Hans Warlimont · Dresden, DE
• Uta Kühn · Rabenau, DE

Key dates

• Filing date: Jul 19, 2000
• Grant date: May 28, 2002
• Expiry date: Jul 19, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J25/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Raney nickel catalysts obtainable by a process in which the melt of an alloy comprising 50 to 94 wt. % aluminum, 10 to 50 wt. % nickel, 0 to 20 wt. % iron, 0 to 15 wt. % cerium, cerium mixed metal, vanadium, niobium, tantalum, chromium, molybdenum or manganese and, optionally, further glass-forming elements is allowed to solidify rapidly with a cooling rate of >104 K/s and the rapidly solidified alloy is then subjected to a treatment with organic or inorganic bases are described.A process for the preparation of the Raney nickel catalysts mentioned and their use in the hydrogenation of organic compounds, in particular aromatic nitro compounds, are furthermore described.