摘要
合成了2种双亚胺基吡啶钴系催化剂,以甲苯为溶剂,甲基铝氧烷(MAO)为助催化剂,用于催化乙烯齐聚合成线性α-烯烃.探讨了浓度、n(A1)/n(Co)和反应温度等因素对催化活性和齐聚产物组成的影响情况,得到了一些有价值的规律.
Two kinds of cobalt-based catalysts bearing 2,6-bis (imino) pyridyl ligands were prepared. Ethyleneoli-gomerizations were carried out by using both catalysts respectively activated with methylaluminoxane (MAO). The high activity of 2.5×106 g/ (mol·h) for catalyst 1 were obtained under the conditions of employing toluene as solvent, the reaction temperature of 10℃ and a ethylene pressure of 0.1 MPa. However, the high activity of 1.9×106 g/ (mol·h) for catalyst 2 were obtained at 10℃. The effects of the concentrations, the molar ratio of Aluminum to cobalt, and reaction temperature on the catalytic activity and the distribution of α-olefins were investigated.
出处
《河北工业大学学报》
CAS
2004年第5期33-37,共5页
Journal of Hebei University of Technology
基金
工程塑料国家重点实验室开放基金资助项目(SKLEP0062)
天津市自然科学基金重点资助项目(023802211)
河北省自然科学基金资助项目(202008)
关键词
钴系催化剂
乙烯齐聚
Α-烯烃
催化活性
碳数分布
cobalt-based catalysts
ethylene oligomerization
α-olefin
catalytic activity
distribution of carbon
