| 摘要 |
PURPOSE:To produce an amide compound at a low cost by hydrating a nitrile compound using a long-life catalyst produced by adding an oxide of a metal selected from specific elements to a manganese oxide catalyst. CONSTITUTION:An amide compound is produced by reacting a nitrile compound such as acetone cyanohydrin with water in liquid phase in the presence of a catalyst produced by adding an oxide of a metal selected from the elements of the group IIIA, IVA, VA, IIIB, IVB, VB, VIB and VIII of the periodic table to a manganese oxide catalyst. Especially preferable catalyst is a combination of manganese dioxide with tin, lead, antimony, bismuth, iron, cobalt or nickel. The dispersion of the catalytic performance of a manganese oxide catalyst can be suppressed in the present catalyst. The catalyst has improved performance and remarkably prolonged life which is a very important factor as an industrial catalyst. |
