| 摘要 |
Catalyst composition for oligomerizing olefins, obtained by contacting (a) a bivalent nickel compound with (b) a hydrocarbylaluminum compound of the formula AIRCl2 where R is a monovalent hydrocarbon radical, and (c) a Bronsted acid consisting preferably of a halogenocarboxylic acid of the formula R1 COOH in which R1 is a halogenoalkyl radical of the formula CmHpXq, X being halogen, m an integer from 1 to 3, p being zero or an integer and q being an integer, the condition p+q=2m+1 being fulfilled. A preferred Bronsted acid is of the formula R2 COOH in which R2 is a halogenomethyl group of the formula CXnH3-n, X being halogen and n an integer from 1 to 3. |
