| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalyst of a high selection rate of unsaturated nitrile used in preparing the unsaturated nitrile by ammoxidation reaction to bring propane or isobutane into gaseous phase contact with ammonia and oxygen. SOLUTION: The catalyst for ammoxidation reaction of the propane or isobutane containing Mo, V, Sb, Nb and Al and the process of preparing unsaturated nitrile using this catalyst. |
