用于乙烯聚合的VOCl_3·nROH/Al_2Et_3Cl_3催化剂(英文)  

VOCl_3·nROH/Al_2Et_3Cl_3 catalyst for ethylene polymerization

作　　者：高巍[1] 张春英[2] 张学全[3] 

机构地区：[1]吉林建筑大学城建学院,长春130111 [2]中国石油吉林石化公司研究院,吉林吉林132021 [3]中国科学院长春应用化学研究所,长春130022

出　　处：《合成橡胶工业》2014年第2期149-149,共1页China Synthetic Rubber Industry

摘　　要：以V2O5为原料、脂肪醇为萃取剂,在较为温和的条件下制备了钒醇配合物(VOCl3·nROH),用其为催化剂、Al2Et3Cl3为助催化剂催化乙烯聚合。结果表明,该催化剂体系聚合烯烃的活性及催化效率均高于VOCl3/Al2Et3Cl3催化剂体系;较低的温度对VOCl3·nROH/Al2Et3Cl3体系催化乙烯聚合有利。Homogeneous vanadium-based compounds are still dominant catalysts in olefin polymerization due to its outstanding copolymerization capability in both high comonomer incorporation and homogeneous chain length dis tribution. However, the traditional vanadium compounds, such as VOCI3 , have very low activity, and their preparation process are not envi ronmental-friendly because chlorination reactions at higher temperature are involved. The vanadium alcohol complex （VOC13 . nROH ） is pre pared using the V2O3 as raw material by extracting V2O5 with aliphaticalcohol from aqueous solution in mild conditions,

关 键 词：钒基化合物 共聚单体 制备方法 氯化反应 

分 类 号：O643.36[理学—物理化学] O632.12[理学—化学]