1- / 1- CATALYST COMPOSITION AND PROCESS FOR OLIGOMERIZATION OF ETHYLENE TO PRODUCE 1-HEXENE AND/OR 1-OCTENE

摘要

The present invention relates to a catalyst composition for the oligomerization of ethylene to produce 1-hexene or 1-octene and a process for oligomerizing ethylene, wherein the catalyst composition comprises a chromium compound; Formula ^{(R 1) (R 2)} NP (R 3) -N (R 4) -P (R 5) -N (R 6) comprising a ligand of NPNPN (R ^7), wherein, R ^1, R ² , R ³ , R ⁴ , R ⁵ , R ⁶ and R ⁷ are each independently hydrogen, halogen, amino, trimethylsilyl or C ₁ -C ₂₀ hydrocarbyl, preferably straight or branched C ₁ -C ₁₀ alkyl , Phenyl, C ₆ -C ₂₀ aryl or C ₆ -C ₂₀ alkyl-substituted phenyl.