| 氯化镁/二氧化硅复合载体的制备及其比表面积的控制 |
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| 引用本文： | 张国虹,张瑞,王路海,任合刚,张宁宁,闫卫东.氯化镁/二氧化硅复合载体的制备及其比表面积的控制[J].精细石油化工,2008,25(2):1-4. |
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| 作者姓名： | 张国虹 张瑞 王路海 任合刚 张宁宁 闫卫东 |
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| 作者单位： | 1. 河北工业大学高分子科学与工程研究所,天津,300130
2. 中国石油股份公司石化研究总院,大庆化工研究中心,黑龙江,大庆,163714 |
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| 摘 要： | 研究了MgCl_2/SiO_2复合载体比表面积的调控。结果表明:MgCl_2与SiO_2载体的复合方式存在化学复合和物理复合(物理包覆)两种方式,通过调节MgCl_2SiO_2复合载体中MgCl_2与SiO_2载体的比例,可以在30～260m~/g范围内调控复合载体的比表面积;MgCl_2/SiO_2复合载体中既存在MgCl_2与SiO_2载体的物理共混,也存在MgCl_2与SiO_2载体表面发生的脱氯化氢反应。制备的复合载体呈球形颗粒形态,表面不均匀,可以提供更多不同的活性中心。
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| 关 键 词： | 复合载体 氯化镁 二氧化硅 比表面控制 表征 |
PREPARATION OF MAGNESIUM CHLORIDE/SILICON DIOXIDE SUPPORT WITH CONTROLLED SURFACE AREA |
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| Zhang Guohong,Zhang Rui,Wang Luhai,Ren Hegang,Zhang Ningning,Yan Weidong.PREPARATION OF MAGNESIUM CHLORIDE/SILICON DIOXIDE SUPPORT WITH CONTROLLED SURFACE AREA[J].Speciality Petrochemicals,2008,25(2):1-4. |
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| Authors: | Zhang Guohong Zhang Rui Wang Luhai Ren Hegang Zhang Ningning Yan Weidong |
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| Abstract: | The regulation of surface area and pore volume of MgCl_2/SiO_2 support was studied. Struc- tures of the support were characterized by XRD, IR, SEM and BET measurement. The results showed that there were both chemical bonding and physical embedding between MgCl_2 and SiO_2. The surface area of the support could be tuned within the range of 30-260 m~2/g by adjusting the propor- tion of MgCl_2 and SiO_2. The surface of the complex support was not uniform, which could offer much more different active centers. SEM image demonstrated that the morphology of the complex support was spherical. |
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| Keywords: | complex support magnesium chloride silicon dioxide controlled surface area character-ization |
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