| 摘要 |
PURPOSE: To execute a contact ammoxidation of the paraffin by using mixingly the first catalyst effective for accelerating a formation of unsatd. nitrile and olefin from the paraffin and the second catalyst effective for accelerating a conversion of the olefin to the unsatd. nitrile. CONSTITUTION: 3C-5C Paraffin is mixed with ammonia, a molecular oxygen and optionally inert gas diluent and brought into contact with a granular mixture of the first catalyst composition and the second catalyst composition. The first catalyst composition has an empirical formula of VSbm Aa Bb Cc Tt Ox , and the second catalyst composition has the empirical formula of Bik Fel Mo12 Dd Ee Ff Gg Ox , and a weight ratio of the first and second catalyst is 0.001-2.5. In this case, A is W, Mo, etc., B is Fe, Co, etc., C and D are alkali metal, etc., T is Ca, Sr, etc., E is Mn, Cr, etc., F is P, As, etc., G is Co, Ni, etc., and (m), (a), (b), (c), (t), (k), (l), (d), (e), (f), (g) and (x) are specified values. |
