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Montmorillonite-Salt Interactions at 550°C

Published online by Cambridge University Press:  28 February 2024

I. M. Natale  and
A. K. Helmy
I. M. Natale
Affiliation:
Universidad Nacional del Sur, 8000, Bahía Blanca, Argentina
A. K. Helmy
Affiliation:
Universidad Nacional del Sur, 8000, Bahía Blanca, Argentina
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Abstract

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The reactions between montmorillonite and carbonates and hydroxides of Na, K and Li were studied at 550°C as a function of salt content and time. The reactions were found to be rapid with a half-time of 20–30 minutes. Good agreement was obtained between theoretical and experimental stoichiometric values for the clay-carbonate reaction. The 001 and 02,11 reflections of the products of the clay-salt reactions diminished in intensity and/or disappeared at and above the stoichiometric concentrations of the reactants.

Keywords

CarbonatesHydroxidesMontmorilloniteSolid-state reaction
Type
Research Article
Information
Clays and Clay Minerals , Volume 40 , Issue 2 , April 1992 , pp. 206 - 211
Copyright
Copyright © 1992, The Clay Minerals Society

Footnotes

Investigadora Comisión de Investigaciones Cientifícas de la Provincia de Buenos Aires, Departamento de Agronomía. Universidad Nacional del Sur.

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