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题名: Synthesis of sodalite in room-temperature ionic liquid
作者: Ma, YC;  Xu, YP;  Wang, SJ;  Wang, BC;  Tian, ZJ;  Yu, JY;  Lin, LW
关键词: ionothermal synthesis ;  zeolite ;  sodalite ;  ionic liquids
刊名: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
发表日期: 2006-04-10
卷: 27, 期:4, 页:739-741
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The simplest zeolite, sodalite (SOD), was synthesized iononic liquid-thermally from aqueous basic aluminosilicate precursor gels in an imidazolium-based ionic liquid, with 1-ethyl-3-methylimidazolium bromide as solvent. The synthesis was carried out at a temperature between 50 and 150 degrees C at an ambient pressure. The effects of mass ratios of aqueous gel to ionic liquid, molar ratios of n(Si)/n(Al) in gel and crystallization temperature and time on the crystallization were investigated. The morphology and structure of the as-prepared products were characterized by X-ray diffraction and scanning electron microscopy. The results show that a mixture of sodalite and zeolite X was initially precipitated in ionic liquid at a ratio 1:3 of aqueous gel to ionic liquid, and finally transformed in to pure sodalite as the crystallisation time is prolonged, and the crystallinity of sodalite increased with the increase of n(Si)/n(Al) from 1.1 to 10. Increasing the ratio of aqueous gel to ionic liquid, zeolite X was favorable to crystallize, and it became the only product under the hydrothermal condition.
语种: 英语
WOS记录号: WOS:000236899200036
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140256
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Dalian Inst Light Ind, Dept Chem Engn, Dalian 116034, Peoples R China

Recommended Citation:
Ma, YC,Xu, YP,Wang, SJ,et al. Synthesis of sodalite in room-temperature ionic liquid[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2006,27(4):739-741.
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