E.i. Dupont De Nemours and Company

William Randolph Leyendecker

Morris Rapoport

Janet Marie Rogers

Robert Clifford Blackstone

A process for purifying a nitrile such as acrylonitrile is disclosed. The process comprises (1) contacting a product mixture, which comprises acrylonitrile and hydrogen cyanide, with glycolic acid or a glycolic acid-generating compound to produce a glycolic acid-treated product; and (2) recovering the nitrile from the glycolic acid-treated product. The product mixture can be produced by contacting ammonia with an olefin under a condition effective to produce a nitrile and hydrogen cyanide.

Nitrile process

Process for recovery of zerovalent nickel organophosphorus containing catalyst from a hydrocyanation product stream by controlling the level of unreacted mononitriles in the stream causing the thus treated stream to form two phases and recovering catalyst from the heavier phase.

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Orange, TX, United States of America

William Randolph Leyendecker