METHOD FOR THE PRODUCTION OF ADIPODINITRILE BY HYDROCYANATION OF 1,3-BUTADIENE

摘要

Disclosed is a method for the production of adipodinitrile by hydrocyanation of 1,3-butadiene on a catalyst, wherein in a first step 1,3-Butadiene is hydrocyanated to form 3-Pentene nitrile on at least one nickel(0) catalyst and, in a second step, 3-Pentene nitrile is hydrocyanated to form adipodinitrile on at least one nickel(0)-catalyst by adding at least one Lew is acid. At least one of the at least one nickel(0) catalysts used in the respective steps of the inventive method is converted in the other step.