| 高岭土微球原位晶化合成高岭土-NaY-MCM-41复合物 |
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| 引用本文： | 刘洪涛,鲍晓军,魏伟胜,石冈,高雄厚,庞新梅. 高岭土微球原位晶化合成高岭土-NaY-MCM-41复合物[J]. 分子催化, 2003, 17(4): 241-246 |
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| 作者姓名： | 刘洪涛 鲍晓军 魏伟胜 石冈 高雄厚 庞新梅 |
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| 作者单位： | 1. 石油大学中国石油天然气集团公司催化重点实验室,北京,102249
2. 中国石油天然气股份有限公司兰州石化分公司研究院,甘肃,兰州,730060 |
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| 摘 要： | 在高岭土微球上原位晶化合成了高岭土-NaY-MCM-41复合物．利用XRD、SEM、TEM和BET等测试手段对合成的样品进行了表征．研究了高岭土表面原位生长NaY-MCM-41复合分子筛的合成化学．考察了合成体系的pH值、模板剂、H2O用量和SiO2／Al2O3比的影响．高岭土-NaY-MCM-41复合物具有大、介、微梯度分布的孔结构和合理的酸性分布．克服了单独的微孔分子筛孔径和介孔分子筛的局限性．实现了介孔、微孔分子筛的优势互补．
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| 关 键 词： | 原位晶化 高岭土-NaY-MCM-41复合物 合成 |
| 文章编号： | 1001-3555(2003)04-0241-06 |
| 修稿时间： | 2002-12-10 |
Preparation of Kaolin-NaY-MCM-41 Composite from Kaolin-NaY by In-situ Crystallization |
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| LIU Hong|tao+,BAO Xiao|jun+,WEI Wei|sheng+,SHI Gang+,GAO Xiong|hou,PANG Xin|mei University of Petroleum,Beijing . Chemical Technology Research Institute,Lanzhou Petrochemical Co.,Petrochina Co Lt,Lanzhou,Gansu. Preparation of Kaolin-NaY-MCM-41 Composite from Kaolin-NaY by In-situ Crystallization[J]. Journal of Molecular Catalysis (China), 2003, 17(4): 241-246 |
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| Authors: | LIU Hong|tao+ BAO Xiao|jun+ WEI Wei|sheng+ SHI Gang+ GAO Xiong|hou PANG Xin|mei University of Petroleum Beijing . Chemical Technology Research Institute Lanzhou Petrochemical Co. Petrochina Co Lt Lanzhou Gansu |
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| Affiliation: | LIU Hong|tao+1,BAO Xiao|jun+1,WEI Wei|sheng+1,SHI Gang+1,GAO Xiong|hou,PANG Xin|mei University of Petroleum,Beijing 102249 2. Chemical Technology Research Institute,Lanzhou Petrochemical Co.,Petrochina Co Ltd,Lanzhou,Gansu 730060) |
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| Abstract: | A kaolin|NaY|MCM|41 composite which possesses macro|meso| microporous structure and gradiently distrubuted acidity was prepared by in|situ crystallization using kaolin as the starting material. The influences of the factors such as pH, H-2O/SiO-2, SiO-2/Al-2O-3 and template amount have been determined. The composites obtained were characterized by XRD, SEM, TEM and BET. The results demonstrated that the surfactant used in the process plays an important role in promoting the crystal transformation of the micorporous NaY phase in addition to its templating effect for the formation of the mesoporous MCM|41 phase. |
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| Keywords: | In-situ crystallization Kaolin-NaY-MCM-41 composite Preparation and characterization Synthesis |
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