Controlled rate thermal analysis of sepiolite
Data(s) |
01/09/2009
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Resumo |
CRTA technology offers better resolution and a more detailed interpretation of the decomposition processes of a clay mineral such as sepiolite via approaching equilibrium conditions of decomposition through the elimination of the slow transfer of heat to the sample as a controlling parameter on the process of decomposition. Constant-rate decomposition processes of non-isothermal nature reveal changes in the sepiolite as the sepiolite is converted to an anhydride. In the dynamic experiment two dehydration steps are observed over the ~20-170 and 170-350°C temperature range. In the dynamic experiment three dehydroxylation steps are observed over the temperature ranges 201-337, 337-638 and 638-982°C. The CRTA technology enables the separation of the thermal decomposition steps. |
Formato |
application/pdf |
Identificador | |
Publicador |
Akademiai Kiado Rt. |
Relação |
http://eprints.qut.edu.au/28325/1/c28325.pdf DOI:10.1007/s10973-009-0321-z Frost, Ray L., Kristof, Janos, & Horvath, Erzsebet (2009) Controlled rate thermal analysis of sepiolite. Journal of Thermal Analysis and Calorimetry, 98(2), pp. 423-428. |
Direitos |
Copyright 2009 Akademiai Kiado, Budapest, Hungary |
Fonte |
Faculty of Science and Technology; School of Physical & Chemical Sciences |
Palavras-Chave | #030603 Colloid and Surface Chemistry #030600 PHYSICAL CHEMISTRY (INCL. STRUCTURAL) #030606 Structural Chemistry and Spectroscopy #030601 Catalysis and Mechanisms of Reactions #attapulgite, sepiolite, palygorskites, thermal analysis, CRTA, thermogravimetry |
Tipo |
Journal Article |