Controlled Rate Thermal analysis of sepiolite
Frost, Ray L., Kristof, Janos, & Horvath, Erzsebet (2009) Controlled Rate Thermal analysis of sepiolite. Journal of Thermal Analysis and Calorimetry, 98(3), pp. 749-755.
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DOI: 10.1007/s10973-009-0201-6
Official URL: http://www.akademiai.com/content/c7p8021028557365/...
Abstract
Controlled rate thermal analysis (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.
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| ID Code: | 29364 |
|---|---|
| Item Type: | Journal Article |
| Keywords: | attapulgite, sepiolite, palygorskites, thermal analysis, CRTA, thermogravimetry |
| ISSN: | 1388-6150 |
| Subjects: | Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603) Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606) |
| Divisions: | Past > QUT Faculties & Divisions > Faculty of Science and Technology |
| Copyright Owner: | Copyright 2009 Akadémiai Kiadó |
| Deposited On: | 18 Dec 2009 11:40 |
| Last Modified: | 11 Aug 2011 01:19 |
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