METALATED PNPNH LIGAND, CATALYST COMPOSITION AND USE THEREOF IN THE OLIGOMERIZATION OF ETHYLENE.

摘要

A process for oligomerization of ethylene, comprising subjecting a catalyst composition to a gas phase of ethylene and conducting an oligomerization, wherein the catalyst composition comprises (a) a chromium compound, (b) a metalated PNPN-H ligand, and (c) an activator or cocatalyst, pref. Et3AI; and the catalyst composition as such, as well as a metalated PNPN-H ligand and a method to obtain it.