| abstract |
The present invention relates to the field of olefin oligomerization using catalyst systems to produce linear alpha-olefins, in particular hexene-1. The catalyst system comprises a chromium source compound, a nitrogen-containing ligand, an aluminum alkyl and a zinc compound, wherein the catalyst system is activated during its preparation by: 1) mixing an aluminum alkyl or an aluminum alkyl with a zinc compound Heating and SHF irradiation (microwave irradiation); or 2) heating an aluminum alkyl or a mixture of an aluminum alkyl and a zinc compound, and then maintaining (aging) the prepared catalyst system for a certain period of time. |