申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0435367A1
公开(公告)日:1991-07-03
A catalyst composition, suitable for use in the oligomerization of ethene to substantially linear alpha olefins, comprises a zirconium or hafnium compound, an aluminium compound and a compound of the general formula (I)
in which each R, which may be the same or different, represents an optionally substituted alkyl, cycloalkyl, aralkyl or aryl group, or groups R on cis nitrogen atoms may together form an aliphatic, cycloaliphatic or aromatic bridging group which may contain heteroatoms; and each R¹, which may be the same or different, represents an optionally substituted alkyl, cycloalkyl, aralkyl or aryl group, or groups R¹ on adjacent nitrogen atoms may together form an aliphatic, cycloaliphatic or aromatic bridging group which may contain hetero atoms; or adjacent groups R and R¹ together with the nitrogen to which they are attached may form an optionally substituted heterocyclic ring.
一种适用于将乙烯低聚为基本线性α-烯烃的催化剂组合物,由锆或铪化合物、铝化合物和通式 (I) 的化合物组成
其中每个 R(可以相同或不同)代表任选取代的烷基、环烷基、芳烷基或芳基,或顺式氮原子上的基团 R 可共同形成脂肪族、环脂族或芳香族桥基,桥基可含有杂原子;每个 R¹(可以相同或不同)代表一个任选取代的烷基、环烷基、芳基或芳基,或相邻氮原子上的基团 R¹可共同形成一个可含有杂原子的脂肪族、环脂族或芳香族桥基;或相邻基团 R 和 R¹连同它们所连接的氮可形成一个任选取代的杂环。