乙烯齐聚催化剂研究进展

综述了乙烯齐聚催化剂的研究进展.按照碳链的原子数目,简要介绍了α-烯烃的用途.按照后过渡金属催化剂和前过渡金属催化剂分类介绍了乙烯齐聚催化剂的研究情况,并重点介绍了乙烯三聚催化剂的研究进展,给出了部分聚合机理.文章最后介绍了α-烯烃除用乙烯齐聚催化剂方法外,还有石蜡热裂解、烷烃催化裂解、烷烃脱氢、烯烃二聚和歧化等方法制备.乙烯齐聚法所得产品线性化程度高,聚合度分布窄,分离费用低,产品质量好.在我国,石蜡裂解法为主要生产方法,因此在我国开展乙烯齐聚的研究,开发具有自主知识产权的齐聚催化剂,具有十分重要的意义.

Progresses on Ethylene Oligomerization Catalysts

Progress on developing of ethylene oligomerization catalysts was reviewed. According to the atomic number of the carbon chain, the utilities of a-alkenes were briefly introduced. We categorized and discussed the details according to latter transition metal catalyst and former transition metal catalyst. Ethylene Trimerization catalyst was introduced in emphasis and its polymerization mechanism was proposed. The article finally introduced preparations methodsa-alkenes have besides ethylene oligomerization catalyst method, but also have paraffin wax hot decomposition, alkane catalysis decomposes, alkane dehydrogenation and alkene two molecular polymerization and so on. The linearization degreec, the polymerization degree distributes, the separation expense of the product and the product quality prepared by ethylene oligomerization are better than that of others. In China, the main production method is paraffin wax decomposition, therefore, it has the extremely vital significance that to develop the research of the ethylene oligomerization and the property rights oligomerization catalyst in our country.