Abstract
The alkali leaching of two aluminosilicates, kaolin and metakaolin with aqueous sodium hydroxide, has been studied. Both of these silicates give hydroxysodalite with or without the zeolite NaA as intermediate.
The crystallisation kinetics was studied first by X-ray powder diffraction. The progress of the reactions was also followed by high-resolution 29Si and 27A1 MAS-NMR spectroscopic monitoring of the signal ratio of the initial materials and the reaction products.
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© 2002 Springer Science+Business Media Dordrecht
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Benharrats, N., Legrand, A.P., Belbachir, M. (2002). 29Si and 27A1 MAS NMR Study of Alkali Leached Kaolinite and Metakaolinite. In: Fraissard, J., Lapina, O. (eds) Magnetic Resonance in Colloid and Interface Science. NATO Science Series, vol 76. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0534-0_44
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DOI: https://doi.org/10.1007/978-94-010-0534-0_44
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-0787-3
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