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Reactive Al-O-Al sites in a natural zeolite: Triple-quantum oxygen-17 nuclear magnetic resonance
Reactive Al-O-Al sites natural zeolite Triple-quantum oxygen-17 nuclear magnetic resonance
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2012/4/1
In framework aluminosilicate materials (e.g., feldspars, zeolites and many others), it is generallyassumed that AlOtetrahedra do not share corners, i.e., that Al-O-Al oxygen sites are avoided whenstoi...
Ion-Exchange Properties of the Natural Zeolite Erionite
Erionite Ion exchange Offretite Selectivity Zeolite Zeolite T
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2012/2/10
Natural erionite was exhaustively ion exchanged with Na+ to give the anhydrous unit-cell composition (K1.9Na5.4Ca0.1Mg0.1)[(AlO2)7.4(SiO2)28.6]. A thermodynamic study of alkali and alkaline earth meta...
Mineral Analysis of Natural Zeolite Deposits
Mineral Analysis Natural Zeolite Deposits
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2011/11/16
Natural zeolites in altered volcanic tuff beds occurring in southeastern Oregon and north central Nevada show layers of mordenite, clinoptilolite, and erionite as principal minerals with occasional oc...