| 非碱性介质中合成ZSM-39型分子筛 |
| SYNTHESIS OF ZSM-39 ZEOLITES IN NON ALKALINE MEDIUM |
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| 摘要: 自1981年Brace报导ZSM-39分子筛合成工作之后[1],人们在用不同有机胺模板剂合成ZSM-39分子筛方面做了很多工作[2-5].并在甲胺存在下,加晶种的方法得到了全硅ZSM-39单晶[5].目前合成ZSM-39的报道都是在碱性体系进行,Guth等报道了在非碱性介质中合成ZSM-5的新途径[6],认为全硅ZSM-5孔道内模板剂是以TPAF形式存在.本工作在非碱性介质中,F离子存在下,合成出ZSM-39分子筛,得到了全硅ZSM-39大单晶,并对其结构进行了测定. |
| 关键词: ZSM-39 非碱性体系 合成 |
| 基金项目: 国家自然科学基金资助项目 |
| Abstract: ZSM-39 zeolites and ZSM-39 single crystal were obtained by hydrothcrmal crystallization from mixtures containing F- anion and tctramethylammonium cation as template; pH values were 5.5-8.5. The influence factors of synthesis and thermal stability of ZSM-39 were studied. The structure of ZSM-39 was determined on diffractomcter.The space group is Fd3m with a=19.391(8)Å. Final R factor was 0.084.The TMAF molecules were located in the point of intersection of 4 and 3 axle. |
| Keywords: ZSM-39 non alkaline medium synthesis |
| 投稿时间：1989-01-09 |
| 摘要点击次数: 1336 |
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| 赵大庆,庞文琴.非碱性介质中合成ZSM-39型分子筛[J].无机化学学报,1991,7(3):357-359. |
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