Kinetic analysis of dissociation of smithsonite from a set of non-isothermal data obtained at different heating rates

Authors
Budrugeac, P Criado, JM Gotor, FJ Popescu, C Segal, E
Citation
P. Budrugeac et al., Kinetic analysis of dissociation of smithsonite from a set of non-isothermal data obtained at different heating rates, J THERM ANA, 63(3), 2000, pp. 777-786
Citations number
24
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
63
Issue
3
Year of publication
2000
Pages
777 - 786
Database
ISI
SICI code
1388-6150(2000)63:3<777:KAODOS>2.0.ZU;2-2
Abstract
The isoconversional methods (Friedman and Flynn-Wall-Ozawa) as well as the invariant kinetic parameters method (IKP) were used in order to work the TG data corresponding to the thermal dissociation of smithsonite. As a result we mention a mechanism change at T approximate to 671 K. For T > 671 K, wh ich corresponds to heating rates in the range 0.57- 8.06 K min(-1), a react ion order model with 1 <n less than or equal to1.4 describes the experiment al data.