Journal ArticleDOI
Energy Changes in Dehydroxylation of Bauxite Minerals
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TLDR
In this paper, thermal decomposition characteristics of bauxite minerals were studied thermogravimetrically and the energies (E) of activation of the decomposition processes were calculated by Flynn and Wall's method.Abstract:
Thermal decomposition characteristics of bauxite minerals were studied thermogravimetrically and the energies (E) of activation of the decomposition processes were calculated by Flynn and Wall's method. The observed values showed wide variations due to compositional differences. Accessory minerals associated with the ores influenced dehydroxylation reactions.read more
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Standard Methods of Chemical Analysis
TL;DR: Standard Methods of Chemical Analysis (SME) as mentioned in this paper is a well-known text for analytical chemistry that has been extensively updated over the last few decades, reaching 2,700 pages in the current edition.
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Homogeneous and Inhomogeneous Mechanisms in the Dehydroxylation of Minerals
TL;DR: In this paper, a new approach to the dehydroxylation of clay minerals is suggested, based on the concept of inhomogeneous mechanisms, and it is shown that certain calcium minerals undergo dehydroxymethylation in this way.
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Energy Changes when Kaolin Minerals are Heated
TL;DR: In this paper, the authors show how, by a consideration of the energy changes involved, some insight may be gained into the reactions occurring when kaolin minerals are heated, and they suggest that the most probable explanation of the exothermic reaction is the simultaneous production of mullite, A1203 and SiO2.
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Kinetics of Clay Dehydration
TL;DR: In this paper, the first order nature of the dehydration reaction is shown to be the underlying basis of the type of curve obtained in differential thermal analysis, and the effect of heating at a constant rate on the progress of a reaction for which the isothermal velocity constants are known.