abstract |
A process for producing 3-pentenenitrile by hydrocyanating 1,3-butadiene in the presence of at least one catalyst has been described in which hydrocyanation was not hydrocyanated from the hydrocyanation effluent. 1,3-butadiene is removed and recycled to the process, and the recycled 1,3-butadiene is monitored for the amount of hydrogen cyanide. |