| 硅胶负载型茂金属催化剂催化乙烯聚合效率研究 |
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| 引用本文： | 王雄,张鹏,刘文霞,姚培洪. 硅胶负载型茂金属催化剂催化乙烯聚合效率研究[J]. 石化技术与应用, 2011, 29(4): 337-339,345 |
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| 作者姓名： | 王雄 张鹏 刘文霞 姚培洪 |
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| 作者单位： | 中国石油兰州化工研究中心,甘肃,兰州,730060 |
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| 摘 要： | 研究了影响硅胶负载型茂金属催化剂(双(1-丁基-3-甲基环异戊二烯基)二氯化锆/甲基铝氧烷)催化乙烯聚合效率的因素,讨论了硅胶颗粒的比表面积、负载温度、铝及锆的负载量对催化效率的影响。结果表明,硅胶的比表面积增大时催化效率提高;负载温度为-20℃,负载锆质量分数约为0.5%,负载铝质量分数约为17%时,负载型茂金属催化剂催化乙烯聚合的催化效率达到最佳状态。
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| 关 键 词： | 茂金属催化剂 聚乙烯 硅胶 催化效率 负载催化剂 |
Study on effieiency of silica gel-supported metallocene catalyst in ethylene polymerization |
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| Wang Xiong,Zhang Peng,Liu Wenxia,Yao Peihong. Study on effieiency of silica gel-supported metallocene catalyst in ethylene polymerization[J]. Petrochemical Technology & Application, 2011, 29(4): 337-339,345 |
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| Authors: | Wang Xiong Zhang Peng Liu Wenxia Yao Peihong |
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| Affiliation: | Wang Xiong,Zhang Peng,Liu Wenxia,Yao Peihong(Lanzhou Petrochemical Research Center,PetroChina,Lanzhou 730060,China) |
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| Abstract: | The factors of influencing catalyst efficiency of silica gel-supported metallocene catalyst of(1-Bu-3-MeCp)2ZrCl2/methylaluminoxane(MAO) was studied.The effects of SiO2 average specific area,supporting temperature,the supporting level of MAO and(1-Bu-3-MeCp)2ZrCl2 on catalyst efficiency were discussed.The results showed that catalyst efficiency increased as the specific surface area of SiO2 increased,and that optimal catalytic efficiency was obtained at about 0.5% of Zr mass fraction and 17% of Al mass frac... |
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| Keywords: | metallocene catalyst polyethylene silica gel catalytic efficiency supported catalyst |
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