丙烯齐聚催化剂的研究进展

Advance in Catalysts for Propylene Oligomerization

综述了丙烯齐聚均相和多相催化剂的研究新进展,对丙烯齐聚均相催化剂中配体的种类、结构与性质,金属阳离子种类、价态及迁移规律,非均相催化剂中载体的种类、性质与结构,负载金属阳离子的种类及价态等对丙烯齐聚反应的影响规律进行了阐述。通过对各类丙烯齐聚催化剂的活性中心、反应中间体的形成和催化机理的讨论,认为均相催化剂与多相催化剂具有相似的活性物种(即M—H键,M表示金属)。提出均相催化剂适宜配体的合成及中心金属与配体配位环境的调变、多相催化剂载体的合成与改性等将是丙烯齐聚催化剂的研究重点。

Recent advance in homogeneous and heterogeneous catalysts for propylene oligomerization was reviewed. Varieties, structures and characteristics of ligands; varieties, valent states and migrating behavior of metal cations in homogeneous catalysts;varieties, structures and characteristics of supports; and varieties and valent states of metal cations in heterogeneous catalysts were expatiated on. Active sites of the catalysts, formation of intermediates in reaction and catalysis mechanism were discussed. Active species（M-H bond） of homogeneous catalysts were considered same as that of heterogeneous catalysts. The important points of future development are synthesizing excellent ligands and adjusting environment between metal cations and ligands for homogeneous catalysts, and synthesizing and modifying excellent supports for heterogeneous catalysts.