Oligomerisation catalyst based on monovalent nickel Ni+ on a silica support, its preparation and oligomerisation processes using the same

摘要

The present invention relates to a novel catalyst based oligomerization of monovalent nickel Ni⁺ on silica support, its preparation and methods of oligoméri tion in the presence of this catalyst.; The catalyst according to the invention is characterized in that it has catalytic activity sites precursors consisting of monovalent nickel complexes Ni⁺ tridentate to three oxygen atoms to the surface of the silica support.