| IM-5分子筛的合成 |
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| 引用本文： | 张超,陈俊文,陈强,王永睿,慕旭宏.IM-5分子筛的合成[J].石油学报(石油加工),2013,29(4):569-576. |
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| 作者姓名： | 张超 陈俊文 陈强 王永睿 慕旭宏 |
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| 作者单位： | 中国石化 石油化工科学研究院 石油化工催化材料与反应工程国家重点实验室， 北京 100083 |
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| 基金项目： | 国家重点基础研究发展规划"973"项目 |
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| 摘 要： | 系统地考察了晶种、n(NaOH)/n(SiO2)、n(MPPBr2)/n(SiO2)和n(H2O)/n(SiO2)对合成IM-5分子筛的影响，并采用27Al MAS NMR、29Si MAS NMR和TEM表征手段探讨了IM-5分子筛的晶化机理。结果表明，添加晶种和降低体系的n(H2O)/n(SiO2)能有效缩短晶化时间；n(NaOH)/n(SiO2)和n(MPPBr2)/n(SiO2)是影响IM-5分子筛合成过程中杂晶相生成的重要因素，适当调节可有效抑制方沸石(ANA)、丝光沸石（MOR）杂晶的生成；通过优化合成条件，晶化时间可由14 d缩短至6 d，得到高结晶度的纯相IM-5分子筛。
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| 关 键 词： | IM-5 分子筛 合成 |
| 收稿时间： | 2012-11-06 |
IM-5 Zeolite Synthesis |
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| ZHANG Chao
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CHEN Junwen
,
CHEN Qiang
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WANG Yongrui
,
MU Xuhong.IM-5 Zeolite Synthesis[J].Acta Petrolei Sinica (Petroleum Processing Section),2013,29(4):569-576. |
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| Authors: | ZHANG Chao CHEN Junwen CHEN Qiang WANG Yongrui MU Xuhong |
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| Affiliation: | State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China |
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| Abstract: | The effects of seeds, n(NaOH)/n(SiO2), n(MPPBr2)/n(SiO2) and n(H2O)/n(SiO2on the synthesis of IM-5 were investigated. The mechanism of IM-5 zeolite synthesis was discussed based on 27Al MAS NMR, 29Si MAS NMR and TEM characterizations. The results showed that crystallization time could be shortened by adding seeds and reducing n(H2O)/n(SiO2) in synthesis system. n(NaOH)/n(SiO2) and n(MPPBr2)/n(SiO2) were important factors for the formation of hybrid crystals, proper adjustment of which could effectively inhibit the emergence of analcime(ANA) and mordenite(MOR) impurity phases. Under optimum conditions, pure IM-5 with high crystallinity could be obtained while the crystallization time reduced from 14 d to 6 d. |
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| Keywords: | IM-5 zeolites synthesis |
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