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| EFFECT OF CRYSTALLIZATION TEMPERATURE ON MCM-41 SYNTHESIS | |
| 引用本文： | 王晓中,窦涛,萧墉壮,钟炳. EFFECT OF CRYSTALLIZATION TEMPERATURE ON MCM-41 SYNTHESIS[J]. 天然气化学杂志, 1998, 7(2): 157-164 |
| 作者姓名： | 王晓中 窦涛 萧墉壮 钟炳 |
| 作者单位： | 太原工业大学精细化工研究所(王晓中，窦涛，萧墉壮)，中国科学院山西煤炭化学研究所(钟炳) |
| 摘 要： | 在Ｎａ２ＯＳｉＯ２ＣＴＡＢＨ２Ｏ四元水热体系中系统地考察了晶化温度对中孔ＭＣＭ４１分子筛合成及其骨架结构的影响。实验结果表明，提高晶化温度虽然能明显加快晶化速率，缩短晶化时间，但同时样品的结晶度和中孔骨架结构的有序度却被迅速破坏。这些特点与传统沸石的合成过程完全不同，其原因主要是合成ＭＣＭ４ｌ时所用的模板剂及其在合成中所起的模板作用与传统沸石完全不同。相对低的晶化温度（如１００℃）有利于高质量和高热稳定性的中孔ＭＣＭ４ｌ分子筛的合成。 |
| 关 键 词： | MCM-4l合成 晶化温度 合成 结构表征 |
EFFECT OF CRYSTALLIZATION TEMPERATURE ON MCM 41 SYNTHESIS |
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| Xiaozhong Wang,Tao Dou,Yongzhuang Xiao,Bing Zhong. EFFECT OF CRYSTALLIZATION TEMPERATURE ON MCM 41 SYNTHESIS[J]. Journal of Natural Gas Chemistry, 1998, 7(2): 157-164 | |
| Authors: | Xiaozhong Wang Tao Dou Yongzhuang Xiao Bing Zhong |
| Affiliation: | Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan, Shanxi 030024; Institute of Coal Chemistry, The Chinese Academy of Sciences |
| Abstract: | The effects of crystallization temperature on mesoporous MCM 41 molecular sieve synthesis and its framework structure in the hydrothermal system of Na2O-SiO2-CTAB-H2O were studied. The experimental results show that rising crystallization temperature can increase significantly the crystallizing rate, but the crystallinity of the samples and the ordered level of mesoporous molecular sieve framework were rapidly deteriorated. These characteristics differ from conventional zeolite formation process because of the particularity of templating during MCM-41 synthesis. |
| Keywords: | MCM 41 crystallization temperature synthesis characterization |
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