Abstract:
1,145,046. Preparation of amines. BADISCHE ANILIN- & SODA-FABRIK A.G. 17 June, 1966 [19 June, 1965], No. 27162/66. Heading C2C. [Also in Division B1] Isopropylamine and di-isopropylamine are prepared when 78À5 kg/hr. of isopropanol, 180 litres/hr. of liquid NH 3 and 50 cu. m. of recycled off-gas are passed over the reduced catalyst specified below at 220‹ C. together with hydrogen at a pressure of 300 atm. Phenylethylamine and diphenylethylamine are prepared by loading the reduced catalyst specified below with 4À04 kg/hr. of phenyl ethyl alcohol and 28 litres/hr. of liquid NH 3 and hydrogen at a pressure of 300 atmospheres at 220‹ C. 10 cu. m. of off-gas is recycled. The catalyst is prepared by allowing a solution containing cobalt nitrate, manganese nitrile or chromium trioxime and phosphoric acid to flow into a solution of sodium carbonate, filtering, washing and heating the resulting product, to form a composition containing more than 50% by weight of oxides, and reducing with hydrogen.