Oligomerization of ethylene
AssigneesSK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
InventorsSudevan Sujith, So Hee Sim, Hyo Seung Park, Sun Young Kim, Sang Ick Lee, Han Sol Lee
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Abstract
Provided is a method for oligomerization of ethylene, and more particularly, a method for producing 1-hexene and 1-octene at a high selectivity under an ethylene atmosphere by inducing a remarkably improved catalytic activity while effectively reducing a production amount of polyethylene by introducing the oligomerization catalyst and a cocatalyst mixture containing at least two aluminums together and adjusting the kind of oligomerization catalyst and injection conditions thereof.
Claims13
A method for oligomerization of ethylene, the method comprising:
- mixing an aluminoxane and an alkyl aluminum compound to prepare a cocatalyst mixture;
- introducing the cocatalyst mixture and a oligomerization catalyst including a transition metal into a reactor;
- introducing ethylene into the reactor;
- and
- reacting the oligomerization catalyst, the cocatalyst mixture, and the ethylene in the reactor with each other,
- wherein the oligomerization catalyst is a complex in which the transition metal and a heteroatom ligand represented by Chemical Formula 2 below are coordinated to each other
- where, in Chemical Formula 2, R11 to R14 are each independently substituted or unsubstituted hydrocarbyl or substituted or unsubstituted heterohydrocarbyl;
- and
- R15 and R16 are each independently substituted or unsubstituted hydrocarbyl, or R15 and R16 may be bonded to each other to form a ring.
Dependencies are inferred from the claim text.