A new data in the kinetic and thermodynamic analysis of non-isothermal decomposition of super-fine kaolin powder
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2018
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© Copyright 2018 Elsevier B.V.
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Prikaz svih podataka o dokumentuApstrakt
Kinetic and thermodynamic analysis of non-isothermal decomposition of super-fine kaolin powder was examined. It was established that the decomposition process proceeds through liberation of adsorbed water, the loss of the water of hydration and dehydroxylation process, which produces highly disordered metakaolin. By applying the distributed reactivity approaches, it was found that dehydroxylation can be described with simultaneous two-parallel reactions model. By applying the Exner-Linert statistical method on estimated Eyring plots, the true isokinetic temperature was confirmed. The appearance of entropy - enthalpy compensation (EEC) showed the direct cause-and-effect relationship between these thermodynamic observables resulting by physically real factors such as the steric factors. It was shown that the phenomenon of true compensation effect arises from conformational (geometrical) changes, which occur during metakaolin formation.
Ključne reči:
dehydroxylation / kaolin / powders / true compensation effect / parallel reaction modelIzvor:
Applied Clay Science, 2018, 156, 160-168Finansiranje / projekti:
- Nove tehnologije za monitoring i zaštitu životnog okruženja od štetnih hemijskih supstanci i radijacionog opterećenja (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
- Materijali redukovane dimenzionalnosti za efikasnu apsorpciju svetlosti i konverziju energije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Dinamika nelinearnih fizičkohemijskih i biohemijskih sistema sa modeliranjem i predviđanjem njihovih ponašanja pod neravnotežnim uslovima (RS-MESTD-Basic Research (BR or ON)-172015)
DOI: 10.1016/j.clay.2018.02.008
ISSN: 0169-1317; 1872-9053
WoS: 000430620800020
Scopus: 2-s2.0-85044326190
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Janković, Bojan Ž. AU - Marinović-Cincović, Milena AU - Janković, Marija M. PY - 2018 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7636 AB - Kinetic and thermodynamic analysis of non-isothermal decomposition of super-fine kaolin powder was examined. It was established that the decomposition process proceeds through liberation of adsorbed water, the loss of the water of hydration and dehydroxylation process, which produces highly disordered metakaolin. By applying the distributed reactivity approaches, it was found that dehydroxylation can be described with simultaneous two-parallel reactions model. By applying the Exner-Linert statistical method on estimated Eyring plots, the true isokinetic temperature was confirmed. The appearance of entropy - enthalpy compensation (EEC) showed the direct cause-and-effect relationship between these thermodynamic observables resulting by physically real factors such as the steric factors. It was shown that the phenomenon of true compensation effect arises from conformational (geometrical) changes, which occur during metakaolin formation. T2 - Applied Clay Science T1 - A new data in the kinetic and thermodynamic analysis of non-isothermal decomposition of super-fine kaolin powder VL - 156 SP - 160 EP - 168 DO - 10.1016/j.clay.2018.02.008 ER -
@article{ author = "Janković, Bojan Ž. and Marinović-Cincović, Milena and Janković, Marija M.", year = "2018", abstract = "Kinetic and thermodynamic analysis of non-isothermal decomposition of super-fine kaolin powder was examined. It was established that the decomposition process proceeds through liberation of adsorbed water, the loss of the water of hydration and dehydroxylation process, which produces highly disordered metakaolin. By applying the distributed reactivity approaches, it was found that dehydroxylation can be described with simultaneous two-parallel reactions model. By applying the Exner-Linert statistical method on estimated Eyring plots, the true isokinetic temperature was confirmed. The appearance of entropy - enthalpy compensation (EEC) showed the direct cause-and-effect relationship between these thermodynamic observables resulting by physically real factors such as the steric factors. It was shown that the phenomenon of true compensation effect arises from conformational (geometrical) changes, which occur during metakaolin formation.", journal = "Applied Clay Science", title = "A new data in the kinetic and thermodynamic analysis of non-isothermal decomposition of super-fine kaolin powder", volume = "156", pages = "160-168", doi = "10.1016/j.clay.2018.02.008" }
Janković, B. Ž., Marinović-Cincović, M.,& Janković, M. M.. (2018). A new data in the kinetic and thermodynamic analysis of non-isothermal decomposition of super-fine kaolin powder. in Applied Clay Science, 156, 160-168. https://doi.org/10.1016/j.clay.2018.02.008
Janković BŽ, Marinović-Cincović M, Janković MM. A new data in the kinetic and thermodynamic analysis of non-isothermal decomposition of super-fine kaolin powder. in Applied Clay Science. 2018;156:160-168. doi:10.1016/j.clay.2018.02.008 .
Janković, Bojan Ž., Marinović-Cincović, Milena, Janković, Marija M., "A new data in the kinetic and thermodynamic analysis of non-isothermal decomposition of super-fine kaolin powder" in Applied Clay Science, 156 (2018):160-168, https://doi.org/10.1016/j.clay.2018.02.008 . .