| 导向剂法合成低硅X型沸石(LSX) |
| |
| 引用本文： | 崔邑诚,韩东成,傅乐峰,张爱民,须沁华,董家騄.导向剂法合成低硅X型沸石(LSX)[J].高等学校化学学报,2002,23(12):2226-2229. |
| |
| 作者姓名： | 崔邑诚 韩东成 傅乐峰 张爱民 须沁华 董家騄 |
| |
| 作者单位： | 南京大学化学系, 南京210093 |
| |
| 基金项目： | 国家教育部 (教技司 78)资助 |
| |
| 摘 要： | 利用导向剂法(CDA)合成低硅n(SiO2)/n(Al2O3)≈2.0]X型沸石,用XRD,X射线荧光光谱测定样品的晶相及化学组成,并利用电子衍射对导向剂在老化过程中的结构变化进行了研究.结果表明,导向剂法合成速度快、杂晶极少.在晶化过程中的导向作用是一个持续过程,其活性不仅与配方、老化时间和温度有关,而且与其晶面的生长有关.
|
| 关 键 词： | 导向剂(CDA) 低硅X型沸石(LSX) 老化 晶化 |
| 文章编号： | 0251-0790(2002)12-2226-04 |
| 收稿时间： | 2002-03-06 |
Synthesis of Low-silica X-Zeolite via Crystallization Directing Agent Method |
| |
| CUI Yi-Cheng,HAN Dong-Cheng,FU Le-Feng,ZHANG Ai-Min,XU Qin-Hua,DONG Jia-Lu.Synthesis of Low-silica X-Zeolite via Crystallization Directing Agent Method[J].Chemical Research In Chinese Universities,2002,23(12):2226-2229. |
| |
| Authors: | CUI Yi-Cheng HAN Dong-Cheng FU Le-Feng ZHANG Ai-Min XU Qin-Hua DONG Jia-Lu |
| |
| Institution: | Department of Chemistry, Nanjing University, Nanjing 210093, China |
| |
| Abstract: | Low-silica X-zeolite(LSX) with a molar ratio 2.0 of SiO 2 to Al 2O 3 has been prepared by crystallization directing agent(CDA). The crystal structure was studied by XRD. The composition and crystal phases were detected by X-ray fluorescence spectrum and electron diffraction spectrum. LSX was synthesized quickly with a high crystallization by using the CDA method. The directing effect of CDA was consecutive in the synthesis. The effect of CDA is related to the composition of mixture, aging time and temperature, and it is related to the growth of the crystal faces. |
| |
| Keywords: | Crystallization directing agent(CDA) Low-silica X-zeolite(LSX) Aging Crystallization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 |
|
