Process for producing olefin oligomer

Abstract

A process for producing an olefin oligomer, which comprises the steps of (1) contacting a transition metal compound with a compound represented by the formula, R1R2A-G-AR3R4, to produce a contact product (i), (2) contacting an alumoxane compound with an organoaluminum compound to produce a contact product (ii), and (3) contacting the contact product (i), the contact product (ii), and an olefin with one another, wherein A is a nitrogen atom, a phosphorus atom, an arsenic atom or an antimony atom; G is a divalent group; and R1, R2, R3 and R4 are independently of one another a hydrocarbyl group, a halogenated hydrocarbyl group, an oxygen-containing hydrocarbyl group, a sulfur-containing hydrocarbyl group, a selenium-containing hydrocarbyl group, or a tellurium-containing hydrocarbyl group.

Description

field of invention

[0001] The present invention relates to a process for the production of olefin oligomers in high yield. Background of the invention

[0002] WO 02 / 04119A1 discloses a process for the trimerization of olefins comprising contacting a monomeric olefin or mixture of olefins under trimerization conditions with a catalyst comprising (a) a source of chromium, molybdenum or tungsten, (b) a combination of at least Ligands of a phosphorus, arsenic or tellurium atom bonded to at least one hydrocarbyl or heterohydrocarbyl group with polar substituents, but excluding all cases where such polar substituents are phosphine, arsane or antimonyl groups, And optionally, (c) an activator.

[0003] WO 2004 / 056477 A1 also discloses a process for trimerizing olefins comprising the steps of contacting an olefin feed stream with a catalyst system comprising a transition metal compound and a heteroatom ligand, and wherein the trimer is an olefin and Wherei...