NICKEL-CONTAINING CATALYST FOR ETHYLENE OLIGOMERIZATION AND ITS USING Russian patent published in 2006 - IPC C07C2/36 B01J31/24 B01J23/755 C08F10/02 

FIELD: chemical technology, catalysts.

SUBSTANCE: invention relates to a nickel-containing catalyst and to a method for the oligomerization reaction of ethylene to a mixture of olefin products with high degree of linearity. Invention describes a composition of catalyst comprising product prepared by interaction of the following components in a polar organic solvent in the presence of ethylene: (a) bivalent nickel simple salt with solubility at least 0.001 mole per liter in indicated polar organic solvent; (b) boron hydride-base reducing agent; (c) water-soluble base; (d) ligand chosen from o-dihydrocarbylphosphinobenzoic acids and their alkaline metal salts; (e) trivalent phosphite wherein the molar ratio of ligand to phosphite is in limits from about 50:1 to about 1000:1. Also, invention describes a method for preparing the catalyst composition and a method for synthesis of a mixture of olefin products showing the high degree of linearity. Invention provides preparing the economically effective catalyst useful in synthesis of olefin substances showing the high degree of linearity.

EFFECT: improved and valuable properties of catalyst.

10 cl, 2 tbl, 3 ex