NEW CHROMIUM CATALYST AND USE THEREOF IN CATALYZING OLIGOMERIZATION AND POLYMERIZATION OF ALKENES

摘要

The present invention provides a new chromium catalyst and the use thereof in catalyzing the oligomerization and polymerization of alkenes. In particular, the catalyst of the present invention is a coordination compound composed of a transition metal precursor and a heterocyclic ligand containing O, S or N, and the catalyst has high catalytic activity and selectivity, and can effectively catalyze the oligomerization and polymerization of alkenes, especially selective trimerization/tetramerization, oligomerization or polymerization of alkenes.