TY  - JOUR
AU  - Jankovic, Bojan
AU  - Smiciklas, Ivana
AU  - Stajić-Trošić, Jasna
AU  - Antonovic, Dusan
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5724
AB  - Thermal characterization and kinetic analysis of non-isothermal decomposition process of Bauxite red mud were carried out using thermogravimetry (TG), derivative thermogravimetry (DTG), differential scanning calorimetry (DSC), differential thermal analysis (DTA) and Fourier transform infrared spectroscopy (FTIR). It was found that the investigated decomposition was a complex heterogeneous process, which included two main decomposition stages and one sub-stage. The overall decomposition process consisted of the series of parallel and competitive reactions, which originated from the decomposition of various chemical species and solid-state transformations. This behavior was confirmed by the appearance of different forms of density distribution functions of apparent activation energy values. Furthermore, the conversion range of 0.10  LT = alpha  LT = 0.30, with a constant value of the apparent activation energy (146.4 kJ mol(-1)) for the second stage of the overall process, belongs to calcite decomposition, which takes place through a two-dimensional diffusion mechanism.
PB  - Elsevier
T2  - International Journal of Mineral Processing
T1  - Thermal characterization and kinetic analysis of non-isothermal decomposition process of Bauxite red mud. Estimation of density distribution function of the apparent activation energy
EP  - 59
SP  - 46
VL  - 123
DO  - 10.1016/j.minpro.2013.05.003
ER  - 

@article{
author = "Jankovic, Bojan and Smiciklas, Ivana and Stajić-Trošić, Jasna and Antonovic, Dusan",
year = "2013",
abstract = "Thermal characterization and kinetic analysis of non-isothermal decomposition process of Bauxite red mud were carried out using thermogravimetry (TG), derivative thermogravimetry (DTG), differential scanning calorimetry (DSC), differential thermal analysis (DTA) and Fourier transform infrared spectroscopy (FTIR). It was found that the investigated decomposition was a complex heterogeneous process, which included two main decomposition stages and one sub-stage. The overall decomposition process consisted of the series of parallel and competitive reactions, which originated from the decomposition of various chemical species and solid-state transformations. This behavior was confirmed by the appearance of different forms of density distribution functions of apparent activation energy values. Furthermore, the conversion range of 0.10  LT = alpha  LT = 0.30, with a constant value of the apparent activation energy (146.4 kJ mol(-1)) for the second stage of the overall process, belongs to calcite decomposition, which takes place through a two-dimensional diffusion mechanism.",
publisher = "Elsevier",
journal = "International Journal of Mineral Processing",
title = "Thermal characterization and kinetic analysis of non-isothermal decomposition process of Bauxite red mud. Estimation of density distribution function of the apparent activation energy",
pages = "59-46",
volume = "123",
doi = "10.1016/j.minpro.2013.05.003"
}

Jankovic, B., Smiciklas, I., Stajić-Trošić, J.,& Antonovic, D.. (2013). Thermal characterization and kinetic analysis of non-isothermal decomposition process of Bauxite red mud. Estimation of density distribution function of the apparent activation energy. in International Journal of Mineral Processing
Elsevier., 123, 46-59.
https://doi.org/10.1016/j.minpro.2013.05.003

Jankovic B, Smiciklas I, Stajić-Trošić J, Antonovic D. Thermal characterization and kinetic analysis of non-isothermal decomposition process of Bauxite red mud. Estimation of density distribution function of the apparent activation energy. in International Journal of Mineral Processing. 2013;123:46-59.
doi:10.1016/j.minpro.2013.05.003 .

Jankovic, Bojan, Smiciklas, Ivana, Stajić-Trošić, Jasna, Antonovic, Dusan, "Thermal characterization and kinetic analysis of non-isothermal decomposition process of Bauxite red mud. Estimation of density distribution function of the apparent activation energy" in International Journal of Mineral Processing, 123 (2013):46-59,
https://doi.org/10.1016/j.minpro.2013.05.003 . .

TY  - JOUR
AU  - Nešić, Aleksandra R.
AU  - Trifunović, Snežana
AU  - Grujić, Aleksandar
AU  - Veličković, Sava J.
AU  - Antonovic, Dusan G.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5630
AB  - Complexes based on amidated pectin (AP) and poly(itaconic acid) (PIA) were prepared by casting films from solutions of AP and PIA in different ratios with the pectin amount ranging from 10% to 90% by mass. The complexes were investigated by elemental analysis, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermogravimetry (TG). In all investigated ratios of AP/PIA glassy transparent films with a uniform structure were obtained. The results of elemental analysis confirmed the composition of the complexes, and FTIR spectroscopy has shown carboxylic and amide peak shifting, indicating complex formation between AP and PIA. Comparison of thermograms of AP/PIA films with different ratios of AP indicated that the increase of the amount of AP increases the thermal stability of the films by retarding the onset of the main degradation processes.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Research
T1  - Complexation of amidated pectin with poly(itaconic acid) as a polycarboxylic polymer model compound
EP  - 2468
IS  - 15
SP  - 2463
VL  - 346
DO  - 10.1016/j.carres.2011.08.021
ER  - 

@article{
author = "Nešić, Aleksandra R. and Trifunović, Snežana and Grujić, Aleksandar and Veličković, Sava J. and Antonovic, Dusan G.",
year = "2011",
abstract = "Complexes based on amidated pectin (AP) and poly(itaconic acid) (PIA) were prepared by casting films from solutions of AP and PIA in different ratios with the pectin amount ranging from 10% to 90% by mass. The complexes were investigated by elemental analysis, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermogravimetry (TG). In all investigated ratios of AP/PIA glassy transparent films with a uniform structure were obtained. The results of elemental analysis confirmed the composition of the complexes, and FTIR spectroscopy has shown carboxylic and amide peak shifting, indicating complex formation between AP and PIA. Comparison of thermograms of AP/PIA films with different ratios of AP indicated that the increase of the amount of AP increases the thermal stability of the films by retarding the onset of the main degradation processes.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Research",
title = "Complexation of amidated pectin with poly(itaconic acid) as a polycarboxylic polymer model compound",
pages = "2468-2463",
number = "15",
volume = "346",
doi = "10.1016/j.carres.2011.08.021"
}

Nešić, A. R., Trifunović, S., Grujić, A., Veličković, S. J.,& Antonovic, D. G.. (2011). Complexation of amidated pectin with poly(itaconic acid) as a polycarboxylic polymer model compound. in Carbohydrate Research
Elsevier Sci Ltd, Oxford., 346(15), 2463-2468.
https://doi.org/10.1016/j.carres.2011.08.021

Nešić AR, Trifunović S, Grujić A, Veličković SJ, Antonovic DG. Complexation of amidated pectin with poly(itaconic acid) as a polycarboxylic polymer model compound. in Carbohydrate Research. 2011;346(15):2463-2468.
doi:10.1016/j.carres.2011.08.021 .

Nešić, Aleksandra R., Trifunović, Snežana, Grujić, Aleksandar, Veličković, Sava J., Antonovic, Dusan G., "Complexation of amidated pectin with poly(itaconic acid) as a polycarboxylic polymer model compound" in Carbohydrate Research, 346, no. 15 (2011):2463-2468,
https://doi.org/10.1016/j.carres.2011.08.021 . .