Abstract:
PROBLEM TO BE SOLVED: To provide a novel and improved method for producing an aromatic or a heteroaromatic nitrile from an aromatic or heteroaromatic hydrocarbon. SOLUTION: Disclosed is a method for preparing an aromatic or a heteroaromatic nitrile represented by general formula (I) from an aromatic or heteroaromatic hydrocarbon in the presence of ammonia and oxygen or an oxygen-containing gas using a supported catalyst comprising 0.5 to 20 wt.% of vanadium oxide comprised of 2 to 30 particle fractions thereof with a mean diameter of each of the particle fractions mutually different by 10 to 80% and a support having bulk density of 0.6 to 1.2 kg/L. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
Disclosed are catalysts, the catalytically active mass of which contains 22 to 40 percent by weight of oxygen-containing compounds of zirconium, calculated as ZrO 2 , 1 to 30 percent by weight of oxygen-containing compounds of copper, calculated as CuO, 15 to 50 percent by weight of oxygen-containing compounds of nickel, calculated as NiO, the molar ratio between nickel and copper being greater than 1, 15 to 50 percent by weight of oxygen-containing compounds of cobalt, calculated as CoO, and less than 1 percent by weight of an alkali metal, calculated as alkali metal oxide, prior to being treated with hydrogen. Also disclosed is a method for the production of amines by reacting primary and secondary alcohols, aldehydes, or ketones with hydrogen and nitrogen compounds selected from the group ammonia, primary and secondary amines, in the presence of said catalysts at an elevated temperature and an elevated pressure.