| 摘要 |
PURPOSE:To increase the yield of acetonitrile in high efficiency without reducing the yield of the main reaction product by carrying out the ammoxidation reaction of a hydrocarbon, an oxygen-containing hydrocarbon or a nitrogen- containing hydrocarbon in the presence of acetone and ethyl alcohol in the reaction system. CONSTITUTION:A hydrocarbon, an oxygen-containing hydrocarbon (e.g. methyl alcohol or tert-butyl alcohol) or a nitrogen-containing hydrocarbon (e.g. picoline) is made to react with ammonia and oxygen in the presence of a catalyst such as bismuth phosphomolybdate to produce an unsaturated nitrile and acetonitrile by ammoxidation reaction. The above reaction is carried out in the presence of acetone and/or ethyl alcohol in the reaction system. There is no particular restriction on the amount of acetone and/or ethyl alcohol and the compounds are supplied to the system in an amount corresponding to the required amount of acetonitrile. The reaction conditions such as reaction temperature and reaction pressure are selected within a range commonly used in conventional ammoxidation reaction. |
