| 球形Ziegler-Natta催化剂制备过程与机理研究 |
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| 引用本文： | 杜宏斌,潘良,肖翠玲,丁钢.球形Ziegler-Natta催化剂制备过程与机理研究[J].石油化工,2011,40(7):737-742. |
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| 作者姓名： | 杜宏斌 潘良 肖翠玲 丁钢 |
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| 作者单位： | 1. 中国石油化工股份有限公司催化剂分公司,北京,100011
2. 中国石油化工股份有限公司催化剂北京奥达分公司,北京,101111 |
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| 摘 要： | 将球形Ziegler-Natta催化剂的制备过程划分为活性MgCl2的生成、内给电子体的负载和TiCl4高温处理3个主要阶段,对每阶段完成后得到的球形固体物的组成进行了分析,并采用XPS和XRD技术对试样进行了表征。实验结果表明,Ti中心在活性MgCl2生成的同时就负载到了MgCl2的不饱和晶面上,给电子体邻苯二甲酸二正丁酯负载到MgCl2载体上后,通过与MgCl2的结合影响Ti在催化剂中的含量和分布。构成球形MgCl2负载Ziegler-Natta催化剂制备过程的3个主要阶段可依次顺序进行,又可交叉叠加进行,但最终制得的球形催化剂的性能基本一致。
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| 关 键 词： | Ziegler-Natta催化剂 内给电子体 聚丙烯 氧化镁 氯化钛 |
Process and Mechanism for Preparation of Spherical Ziegler-Natta Catalysts for Propylene Polymerization |
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| Du Hongbin,Pan Liang,Xiao Cuiling,Ding Gang.Process and Mechanism for Preparation of Spherical Ziegler-Natta Catalysts for Propylene Polymerization[J].Petrochemical Technology,2011,40(7):737-742. |
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| Authors: | Du Hongbin Pan Liang Xiao Cuiling Ding Gang |
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| Affiliation: | Du Hongbin1,Pan Liang2,Xiao Cuiling2,Ding Gang2(1.SINOPEC Catalyst Company,Beijing 100011,China,2.SINOPEC Catalyst Company Beijing AUDA Division,Beijing 101111,China) |
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| Abstract: | The spherical Ziegler-Natta catalysts were prepared through a three-stage process,namely formation of activated MgCl2,load of internal donor and high-temperature treatment with TiCl4.The spherical solid products from the every stage were analyzed and characterized by means of XPS & XRD.The results showed that TiCl4 was loaded on the unsaturated crystal surface of the activated MgCl2 while it was formed.The Ti contents in the Ziegler-Natta catalysts and their distribution were influenced by combination of th... |
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| Keywords: | Ziegler-Natta catalyst internal donor polypropylene magnesium chloride titanium chloride |
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