| 无机/有机复合载体负载TiCl_3/(n-BuCp)_2ZrCl_2的 |
| |
| 引用本文： | 蒋斌波,叶健,吴晶,王靖岱,历伟,阳永荣.无机/有机复合载体负载TiCl_3/(n-BuCp)_2ZrCl_2的[J].化工学报,2011,62(10). |
| |
| 作者姓名： | 蒋斌波 叶健 吴晶 王靖岱 历伟 阳永荣 |
| |
| 作者单位： | 浙江大学化学工程与生物工程学系,化学工程联合国家重点实验室,浙江杭州310027 |
| |
| 基金项目： | 国家自然科学基金重大项目(20776124); 国家高技术研究发展计划项目(2007AA030208); 中央高校基本科研业务费专项资金项目~~ |
| |
| 摘 要： | 采用溶胶-凝胶法将苯乙烯丙烯酸共聚物(PSA)包裹在负载型Ziegler-Natta催化剂表面,随后用表面改性剂n-BuSnCl3处理有机载体表面的官能团,最后在PSA上负载(n-BuCp)2ZrCl2制得复合催化剂,研究了复合催化剂的气相聚合行为。实验首先通过BET、粒径分析、红外分析等手段考察了采用n-BuSnCl3改性前后载体的结构特征。乙烯气相聚合结果表明,改性后催化剂具有较高的活性,达2.56×107g PE.(mol Zr)-1.h-1.MPa-1。实验研究了不同聚合时间下聚乙烯产物的性质及外层PSA载体在聚合过程中的破碎行为,并与乙烯淤浆聚合结果进行对比。结果表明,溶剂对催化剂外层PSA载体的溶胀作用,对催化剂活性点均匀发挥起着至关重要的作用。
|
| 关 键 词： | 复合催化剂 有机/无机复合载体 气相聚合 载体破碎 |
Immobilizing TiCl_3/(n-BuCp)_2ZrCl_2 catalyst on organic/inorganic support for gas-phase ethylene polymerization |
| |
| JIANG Binbo,YE Jian,WU Jing,WANG Jingdai,LI Wei,YANG Yongrong.Immobilizing TiCl_3/(n-BuCp)_2ZrCl_2 catalyst on organic/inorganic support for gas-phase ethylene polymerization[J].Journal of Chemical Industry and Engineering(China),2011,62(10). |
| |
| Authors: | JIANG Binbo YE Jian WU Jing WANG Jingdai LI Wei YANG Yongrong |
| |
| Affiliation: | JIANG Binbo,YE Jian,WU Jing,WANG Jingdai,LI Wei,YANG Yongrong(State Key Laboratory of Chemical Engineering,Department of Chemical and Biochemical Engineering,Zhejiang University,Hangzhou 310027,Zhejiang,China) |
| |
| Abstract: | Styrene and acrylic copolymer(PSA)modified by n-BuSnCl3 was coated on commercial M-1 catalyst(SiO2/MgCl2-TiCl3).Then(n-BuCp)2ZrCl2 was immobilized on the modified PSA to obtain a hybrid catalyst.The catalyst performance for gas-phase ethylene polymerization was measured.The structure and morphology of the modified support was characterized by BET,SEM,FTIR and particle size analysis.It was found that n-BuSnCl3 was a relative weak modifier,the change of support structure not obvious and there was interaction ... |
| |
| Keywords: | hybrid catalyst organic/inorganic support gas-phase polymerization fragmentation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
