Thermal Decomposition of Vermiculites: Kinetics of Dehydration and Dehydroxylation Processes
TL;DR: In this article, the thermal decomposition reactions of homoionic clay minerals, viz. vermiculite, in air in the temperature range 30°-1000°C by thermo-analytical methods are reported.
Abstract: The thermal decomposition reactions of some homoionic clay minerals, viz. vermiculite, in air in the temperature range 30°-1000°C by thermo-analytical methods are reported. The reaction kinetic of isothermal dehydration and dehydroxylation is found to obey first order reaction rate.
Cites background from "Thermal Decomposition of Vermiculit..."
...Non-isothermal kinetics of this process, which occurs at temperature quite higher than dehydration due to the presence of stronger hydrogen bonds between the OH groups, was extensively studied for different types of KAOs [18, 20–26], but little is known about the same process occurring in HNTs where early papers used questionable methods under isothermal conditions [27, 28]....
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