Publication: Kinetic study of the intercalation process of dimethylsulfoxide in kaolinite
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2015-11-10
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Elsevier
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Abstract
A kinetic study of the intercalation reaction of dimethylsulfoxide (DMSO) into the layers of kaolinite was carried out. Several kaolinite–DMSO mixtures were analyzed at four temperatures (60, 50, 45 and 40 °C). Structural characterization was done by X-ray diffraction (XRD). The intercalation reaction was followed by XRD of the kaolinite–DMSO intercalates at different reaction times and temperatures. A kinetic analysis of the process was performed considering a two-step simple mechanism for consecutive reactions: ingress of DMSO molecules into the kaolinite galleries and subsequent rotation of DMSO molecules. Finally, the activation energies of the two steps proposed for the global intercalation process were estimated.
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Kaolinite, DMSO, Intercalation, Kinetic study, Nanocomposites, Decomposition
Bibliographic citation
Castrillo, P., Olmos, D. & González-Benito, J. (2015). Kinetic study of the intercalation process of dimethylsulfoxide in kaolinite. International Journal of Mineral Processing, 144, pp. 70–74.