| 摘要 |
The present invention relates to a catalyst composition for ethylene oligomerization including an imino ferrous complex represented by the following formula (I) as the main catalyst, an aluminum-containing cocatalyst, water, and an organic solvent. According to the present invention, a higher oligomerization activity can be obtained with the catalyst composition according to the present invention than with a catalyst composition system in the prior art which contains no water. Moreover, when the catalyst composition according to the present invention is used, a high selectivity of alpha-olefins is obtainable. Besides, the catalyst composition according to the present invention enables rapid initiation, stable operation, and good repeatability of the oligomerization reaction. According to the present invention, a high oligomerization activity can be obtained even at a rather low ratio of Al to Fe, or at low reaction temperatures. |
