Raney-Nickel-Katalysatoren, ein Verfahren zu deren Herstellung und deren Verwendung zur Hydrierung organischer Verbindungen

摘要

The invention relates to Raney nickel catalysts obtained by allowing the melt of an alloy consisting of 50 to 95 wt. % aluminium, 10 to 50 wt. % nickel, 0 to 20 wt. % iron, 0 to 15 wt. % cerium, cerium misch metal, vanadium, niobium, tantalum, chromium, molybdenum or manganese and optionally, other glass-forming elements with a cooling rate of > 10<4> K/s to harden rapidly, and then subjecting the rapidly hardened alloy to a treatment with organic or inorganic bases. The invention also relates to a method for producing the inventive Raney nickel catalyst and to its use in the hydrogenation of organic compounds, especially aromatic nitro compounds.