| abstract |
The process largely removes or completely forms ammonium sulphate during the production of acrylonitrile by direct ammoxidation (reaction with ammonia and oxygen) of propylene or propane, ammonia and oxygen-containing gas, eg air, on a catalytic fluid bed located in a suitable reactor. In the latter, organic matter is introduced, resp. Substances that react with almost all residual ammonia without affecting the yield of acrylonitrile. Preferably the organic substance is methanol, which is introduced into the reactor at a temperature below the point of its charring. |