| ~(29)Si MAS-NMR STUDIES ON DEALUMINATION OF MORDENITE |
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| 引用本文： | 薛志元,戴林森,李全芝,张红浪. ~(29)Si MAS-NMR STUDIES ON DEALUMINATION OF MORDENITE[J]. 中国科学B辑(英文版), 1989, 0(9) |
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| 作者姓名： | 薛志元 戴林森 李全芝 张红浪 |
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| 作者单位： | Center of Analysis and Measurement，Fudan University，Shanghai，Center of Analysis and Measurement，Fudan University，Shanghai，Department of Chemistry，Fudan University，Shanghai，Department of Chemistry，Fudan University，Shanghai |
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| 摘 要： | A series of different H-mordenites from acid leaching and steam calcination have beenmeasured with ~(29)Si NMR. Through analysis of these solid-state ~(29)Si NMR spectra, theresults related to dealumination process of mordenite are obtained. It is shown that mor-denite is combined by four kinds of non-equivalent Si (or Al) via oxygen bridges. The deal-umination order is T(1), T(2), T(4) and T(3). The dealuminated amount in the non-equivalentsites during different dealumination processes has also been discussed in detail.
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~(29)Si MAS-NMR STUDIES ON DEALUMINATION OF MORDENITE |
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| XUE ZHI-YUAN,DAI LAN-SEN,LI QUAN-ZHI,ZHANG HONG-LANG Center of Analysis and Measurement,Fudan University,Shanghai. ~(29)Si MAS-NMR STUDIES ON DEALUMINATION OF MORDENITE[J]. Science in China(Chemistry), 1989, 0(9) |
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| Authors: | XUE ZHI-YUAN DAI LAN-SEN LI QUAN-ZHI ZHANG HONG-LANG Center of Analysis Measurement Fudan University Shanghai |
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| Affiliation: | XUE ZHI-YUAN,DAI LAN-SEN,LI QUAN-ZHI,ZHANG HONG-LANG Center of Analysis and Measurement,Fudan University,Shanghai Department of Chemistry,Fudan University,Shanghai |
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| Abstract: | A series of different H-mordenites from acid leaching and steam calcination have beenmeasured with ~(29)Si NMR. Through analysis of these solid-state ~(29)Si NMR spectra, theresults related to dealumination process of mordenite are obtained. It is shown that mor-denite is combined by four kinds of non-equivalent Si (or Al) via oxygen bridges. The deal-umination order is T(1), T(2), T(4) and T(3). The dealuminated amount in the non-equivalentsites during different dealumination processes has also been discussed in detail. |
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| Keywords: | mordenite ~(29)Si MAS-NMR spectra order of dealumination |
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