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Process for producing .alpha.,.beta.-unsaturated nitrile

  • US 5,965,765 A
  • Filed: 07/02/1998
  • Issued: 10/12/1999
  • Est. Priority Date: 01/05/1996
  • Status: Expired due to Fees
First Claim
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1. A process for producing an α



  • -unsaturated nitrile which comprises catalytically reacting propylene, isobutylene, or tert-butyl alcohol with ammonia and an oxygen-containing gas at a high temperature in a gas phase by the use of a fluidized bed catalyst to produce an α



    -unsaturated nitrile having the same number of carbon atoms as propylene, isobutylene, or tert-butyl alcohol, wherein the reaction is conducted in a fluidized-bed reactor to which methanol and an oxygen-containing gas are fed through respective gas dispersing pipes at positions corresponding to from one half to nine tenths the whole contact time from the a point of starting-material feeding, and which has one or more perforated structures having open area ratio of at least 60% disposed below and/or above the gas dispersing pipes.

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