石油化工2012，Vol.41Issue(1)：27-32,6.
空心球状介孔硅基材料负载茂金属催化剂及催化乙烯聚合的研究
Hollow Spherical Mesoporous Silica Material Supported Metallocene Catalyst Used in Ethylene Polymerization
摘要
Abstract
A hollow spherical mesoporous silica material(MS) was synthesized from HO(CH2CH2O)2[l(CH2CH2(CH3)O)7o(CH2CH2O)20H, 2, 2, 4-trimethylpentane and tetramethoxysilane, and then the catalyst MS-Bu was prepared by supporting metallocene bis(n-butylcyclopentadienyl) zirconium dichloride and methylaluminoxane onto the synthesized material. The catalyst activity in ethylene polymerization was evaluated. MS-Bu and MS were characterized by means of XRD, TEM, SEM, EDS, ICP and N2 adsorption-desorption. SEM and XRD results showed that both MS-Bu and MS were in hollow spherical shape with symmetric hexagonal crystal. N2 adsorption-desorption results indicated that both MS-Bu and MS had TV physisorption isotherms and their pore distributions were narrow and uniform. The experimental results showed that the activities of MS-Bu in ethylene homo-polymerization and co-polymerization of ethylene and 1-hexene were high, which were 6 122 and 5 998 g/g respectively.关键词
空心球状介孔硅基材料/茂金属催化剂/乙烯聚合Key words
hollow spherical mesoporous silica material/ metallocene catalyst/ ethylene polymerization分类
化学化工引用本文复制引用
亢宇,张明森,谢伦嘉,王洪涛,姜健准,郭顺..空心球状介孔硅基材料负载茂金属催化剂及催化乙烯聚合的研究[J].石油化工,2012,41(1):27-32,6.基金项目
中国石化北京化工研究院院控项目(B6001-10ZS0215) （B6001-10ZS0215）
