Continuous cyanoethylation process

Details Continuous cyanoethylation process Continuous cyanoethylation process

C - Chemistry, Metallurgy

07

C

260/561.1

C07C 121/34 (1980.01)

Patent

CA 1119193

ABSTRACT OF THE DISCLOSURE An improvement in a continuous homogeneous cyanoethyla- tion process involving the use of a relatively large amount of recycle, e.g., 50-90 wt.% of the reactor effluent, which is premixed with the fresh feed going to the reaction zone. The reaction zone is maintained at a cyanoethylation temperature. High yields of cyanoethylated products are obtained. The process, e.g., has a yield in excess of 95 wt.% of 3,3'-ethylenedioxybis (propionitrile) from the reaction of ethylene glycol and acrylonitrile and the use of a catalyst, e.g., an aqueous alkali metal hydroxide.

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