CATALYST SYSTEM CONTAINING NI(0) FOR HYDROCYANATION

摘要

A catalyst system containing a) Ni (0), b) 4 -10 mol per mol Ni (0) accordin g to a) a compound (I) of formula P (X1R1) (X2R2) (X3R3) (I) wherein X1, X2, X 3 independently represent oxygen or a single bond R1, R2, R3 represent independently, the same or different organic radicals, and c) 1 -4 mol per m ol Ni (0) according to a) a compound (II) of formula (II) wherein X11, X12, X13 , X21, X22, X23 independnetly represent oxygen or a single bond, R11, R12 independently represent the same or different individual or bridged organic radicals, R21, R22 independently represent the same or different, individual or bridged organic radicals, Y represents a bridge group. The invention also relates to a method for the production of mixtures of monoolefin C5- mononitrils with a n-conjugated C=C and C=N bond by hydrocyanation of a hydrocarbon mixture containing 1,3-butadiene in the presence of at least one such system and to a method for the production of a dinitrile by hydrocyanation of a mixture of monoolefin C5-mononitriles with a non- conjugated C=C- and C=N bond in the presence of at least one such system.