| CrO_3/SiO_2/MAO催化剂上的乙烯气相聚合 |
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| 引用本文： | 李留忠,达建文,张廷山,于元章.CrO_3/SiO_2/MAO催化剂上的乙烯气相聚合[J].石油化工,2001,30(10). |
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| 作者姓名： | 李留忠 达建文 张廷山 于元章 |
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| 作者单位： | 齐鲁石油化工公司研究院 |
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| 摘 要： | 制备了一种新型的CrO3/SiO2 /MAO乙烯聚合催化剂 ,研究了催化剂制备配方和气相聚合反应条件对催化剂聚合活性和聚合物性能的影响。结果表明 ,该催化剂聚合活性高 ,聚合物的熔体指数较低 ,MAO与EtOAlEt2 共同使用作为还原助剂时得到的催化剂具有敏感的临氢效应。
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| 关 键 词： | 催化剂 铬 MAO 乙烯 聚合 |
Gas Phase Ethylene Polymerization with CrO_3/SiO_2/MAO Catalytic System |
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| LI Liu-zhong,DA Jian-wen,ZHANG Ting-shan,REN Hong,YU Yuan-zhang.Gas Phase Ethylene Polymerization with CrO_3/SiO_2/MAO Catalytic System[J].Petrochemical Technology,2001,30(10). |
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| Authors: | LI Liu-zhong DA Jian-wen ZHANG Ting-shan REN Hong YU Yuan-zhang |
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| Abstract: | A novel catalytic system of CrO 3/SiO 2/MAO for ethylene polymerization was prepared in the laboratory,and the effect of preparation formulation and polymerization conditions on catalytic activity and product properties were investigated.The results show that the catalytic system exhibits high activity in gas phase ethylene polymerization,and relatively low melt flow index of resin product,and the catalyst with both MAO and EtOAlEt 2 as cocatalysts possesses high hydrogen sensitivity. |
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| Keywords: | catalyst chromium MAO ethylene polymerization |
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