申请人:Saudi Basic Industries Corporation
公开号:EP1759766A1
公开(公告)日:2007-03-07
The present invention relates to a process for the preparation of linear low molecular weight alpha-olefins having 4 to 24 carbon atoms, comprising oligomerizing ethylene in an inert solvent in the presence of a catalyst system comprising: (i) zirconium carboxylate of the formula (R1COO)mZrCl4-m, wherein R1 is saturated or unsaturated aliphatic C1-C10 hydrocarbon or aromatic C6-C14 hydrocarbon and m fulfills 1 ≤m ≤4, (ii) at least one aluminum compound selected from organoaluminum compounds of the formula R2nAlX3-n, wherein R2 is C1-C20 alkyl, X is chlorine, bromine or iodine, and n fulfills 1 ≤n ≤2, and/or aluminoxanes, and (iii) at least two different additives selected from the group consisting of hydrogen, esters, ketones, ethers, amines, anhydrides, phosphines and sulfur compounds; as well as to a catalyst used therein.
本发明涉及一种制备具有 4 至 24 个碳原子的线性低分子量α-烯烃的工艺,包括 在惰性溶剂中,在催化剂体系存在下,使乙烯低聚,催化剂体系包括(i) 式 (R1COO)mZrCl4-m 的羧酸锆,其中 R1 为饱和或不饱和脂肪族 C1-C10 烃或芳香族 C6-C14 烃,m 满足 1 ≤m ≤4;(ii) 至少一种铝化合物,选自式 R2nAlX3-n 的有机铝化合物、其中 R2 为 C1-C20 烷基,X 为氯、溴或碘,且 n 满足 1 ≤n ≤2,和/或铝氧烷,以及 (iii) 至少两种不同的添加剂,选自氢、酯、酮、醚、胺、酐、膦和硫化合物组成的组;以及其中使用的催化剂。