TY  - JOUR
AU  - Adnađević, Borivoj
AU  - Popović, Aleksandar R.
AU  - Mikasinovic, B.
PY  - 2009
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1001
AB  - The most important structural components of coal ash obtained by coal combustion in "Nikola Tesla A" power plant located near Belgrade (Serbia) are amorphous alumosilicate, alpha-quartz, and mullite. The phase composition of coal ash can be altered to obtain zeolite type NaA that crystallizes in a narrow crystallization field (SiO(2)/Al(2)O(3); Na(2)O/SiO(2); H(2)O/Na(2)O ratios). Basic properties (crystallization degree, chemical composition, the energy of activation) of obtained zeolites were established. Coal ash extracts treated with obtained ion-exchange material showed that zeolites obtained from coal ash were able to reduce the amounts of iron, chromium, nickel, zinc, copper, lead, and manganese in ash extracts, thus proving its potential in preventing pollution from dump effluent waters.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Energy Sources Part A-Recovery Utilization and Environmental Effects
T1  - Prevention of Trace and Major Element Leaching from Coal Combustion Products by Hydrothermally-Treated Coal Ash
VL  - 31
IS  - 15
SP  - 1387
EP  - 1396
DO  - 10.1080/15567030802089672
ER  - 

@article{
author = "Adnađević, Borivoj and Popović, Aleksandar R. and Mikasinovic, B.",
year = "2009",
abstract = "The most important structural components of coal ash obtained by coal combustion in "Nikola Tesla A" power plant located near Belgrade (Serbia) are amorphous alumosilicate, alpha-quartz, and mullite. The phase composition of coal ash can be altered to obtain zeolite type NaA that crystallizes in a narrow crystallization field (SiO(2)/Al(2)O(3); Na(2)O/SiO(2); H(2)O/Na(2)O ratios). Basic properties (crystallization degree, chemical composition, the energy of activation) of obtained zeolites were established. Coal ash extracts treated with obtained ion-exchange material showed that zeolites obtained from coal ash were able to reduce the amounts of iron, chromium, nickel, zinc, copper, lead, and manganese in ash extracts, thus proving its potential in preventing pollution from dump effluent waters.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Energy Sources Part A-Recovery Utilization and Environmental Effects",
title = "Prevention of Trace and Major Element Leaching from Coal Combustion Products by Hydrothermally-Treated Coal Ash",
volume = "31",
number = "15",
pages = "1387-1396",
doi = "10.1080/15567030802089672"
}

Adnađević, B., Popović, A. R.,& Mikasinovic, B.. (2009). Prevention of Trace and Major Element Leaching from Coal Combustion Products by Hydrothermally-Treated Coal Ash. in Energy Sources Part A-Recovery Utilization and Environmental Effects
Taylor & Francis Inc, Philadelphia., 31(15), 1387-1396.
https://doi.org/10.1080/15567030802089672

Adnađević B, Popović AR, Mikasinovic B. Prevention of Trace and Major Element Leaching from Coal Combustion Products by Hydrothermally-Treated Coal Ash. in Energy Sources Part A-Recovery Utilization and Environmental Effects. 2009;31(15):1387-1396.
doi:10.1080/15567030802089672 .

Adnađević, Borivoj, Popović, Aleksandar R., Mikasinovic, B., "Prevention of Trace and Major Element Leaching from Coal Combustion Products by Hydrothermally-Treated Coal Ash" in Energy Sources Part A-Recovery Utilization and Environmental Effects, 31, no. 15 (2009):1387-1396,
https://doi.org/10.1080/15567030802089672 . .

TY  - JOUR
AU  - Adnađević, Borivoj
AU  - Popović, Aleksandar R.
PY  - 2009
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/628
AB  - The influence of temperature, pressure, and time of interaction on the yield, caloric power, and elemental composition of solid product of hydrothermal transformation of sawdust into synthetic coke has been studied. With other parameters fixed, transformation of sawdust occurs between 350C and 400C. Further increase of temperature up to 580C as well as pressure above 80 atm, result in the increase of the yield of synthetic coke. Rate of formation of coke is governed by precipitation rate of asphaltene liquid associates, while the activation energy of the process is close to the activation energy of diffusion of asphaltene molecules in reaction environment.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Energy Sources Part A-Recovery Utilization and Environmental Effects
T1  - Hydrothermal Transformation of Sawdust into Synthetic Coke-Mechanism and Influence of Experimental Parameters
VL  - 31
IS  - 10
SP  - 807
EP  - 813
DO  - 10.1080/15567030701752750
ER  - 

@article{
author = "Adnađević, Borivoj and Popović, Aleksandar R.",
year = "2009",
abstract = "The influence of temperature, pressure, and time of interaction on the yield, caloric power, and elemental composition of solid product of hydrothermal transformation of sawdust into synthetic coke has been studied. With other parameters fixed, transformation of sawdust occurs between 350C and 400C. Further increase of temperature up to 580C as well as pressure above 80 atm, result in the increase of the yield of synthetic coke. Rate of formation of coke is governed by precipitation rate of asphaltene liquid associates, while the activation energy of the process is close to the activation energy of diffusion of asphaltene molecules in reaction environment.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Energy Sources Part A-Recovery Utilization and Environmental Effects",
title = "Hydrothermal Transformation of Sawdust into Synthetic Coke-Mechanism and Influence of Experimental Parameters",
volume = "31",
number = "10",
pages = "807-813",
doi = "10.1080/15567030701752750"
}

Adnađević, B.,& Popović, A. R.. (2009). Hydrothermal Transformation of Sawdust into Synthetic Coke-Mechanism and Influence of Experimental Parameters. in Energy Sources Part A-Recovery Utilization and Environmental Effects
Taylor & Francis Inc, Philadelphia., 31(10), 807-813.
https://doi.org/10.1080/15567030701752750

Adnađević B, Popović AR. Hydrothermal Transformation of Sawdust into Synthetic Coke-Mechanism and Influence of Experimental Parameters. in Energy Sources Part A-Recovery Utilization and Environmental Effects. 2009;31(10):807-813.
doi:10.1080/15567030701752750 .

Adnađević, Borivoj, Popović, Aleksandar R., "Hydrothermal Transformation of Sawdust into Synthetic Coke-Mechanism and Influence of Experimental Parameters" in Energy Sources Part A-Recovery Utilization and Environmental Effects, 31, no. 10 (2009):807-813,
https://doi.org/10.1080/15567030701752750 . .

TY  - JOUR
AU  - Kostić, Aleksandar Ž.
AU  - Adnađević, Borivoj
AU  - Popović, Aleksandar R.
AU  - Jovanovic, Jelena
PY  - 2007
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/892
AB  - The isothermal kinetics Curves of the swelling of a poly(acrylic acid) hydrogel in distilled water and physiological Solution at temperatures ranging from 20 to 40 degrees C were determined. The possibility of applying both the Fick's kinetics model anti kinetics model of the first order chemical reaction to the swelling kinetics of the PAA hydrogel in distilled water and physiological Solution were examined. It was found that the possibilities of applying these models were limited. The new model of the kinetics of swelling in distilled water and physiological solution was established. The kinetic parameters (E-a, ln A) for the swelling in distilled water and physiological solution were determined. The decrease of the equilibrium degree of swelling and the saturation swelling rate of the swelling of the PAA hydrogel in physiological solution compared to swelling in distilled water could be explained by the decreased differences in the ionic osmotic pressures between the hydrogel and the swelling medium. The increase of the initial swelling rate in the physiological solution might be caused by an increased density of charges at the network and by an increased affinity of the network towards the water molecules. The increase of the activation energy of the swelling of the PAA hydrogel in the physiological solution is a consequence of its additional "ionic crosslinking".
AB  - U radu su ispitivane izotermalne kinetičke krive bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru u temperaturnom opsegu od 20 do 40 °C. Ispitivana je mogućnost primene Fikovog kinetičkog modela kao i kinetike i reda hemijskih reakcija na kinetiku bubrenja poliakrilnog hidrogela.Utvrđeno je da su mogućnosti za njihovu primenu vrlo ograničene. Iz tih razloga primenjen je novi model kinetike bubrenja. Određeni su kinetički parametri (Ea, lnA) za procese bubrenja u destilovanoj vodi i fiziološkom rastvoru. Smanjenje ravnotežnog stepena bubrenja i saturacione brzine bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u fiziološkom rastvoru u odnosu na destilovanu vodu može se objasniti smanjenjem razlike u jonskom osmotskom pritisku između hidrogela i medijuma za bubrenje. Povećanje inicijalne brzine bubrenja u fiziološkom rastvoru u odnosu na destilovanu vodu prouzrokovano je povećanjem gustine naelektrisanja na polimernoj mreži i povećanim afinitetom prema molekulima vode. Povećanje energije aktivacije hidrogela delimično neutralisane poli(akrilne) kiseline pri bubrenju u fiziološkom rastvoru se objašnjava dodatnim "jonskim umreženjem" hidrogela u fiziološkom rastvoru.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution
T1  - Poređenje kinetike bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru
VL  - 72
IS  - 11
SP  - 1139
EP  - 1153
DO  - 10.2298/JSC0711139K
ER  - 

@article{
author = "Kostić, Aleksandar Ž. and Adnađević, Borivoj and Popović, Aleksandar R. and Jovanovic, Jelena",
year = "2007",
abstract = "The isothermal kinetics Curves of the swelling of a poly(acrylic acid) hydrogel in distilled water and physiological Solution at temperatures ranging from 20 to 40 degrees C were determined. The possibility of applying both the Fick's kinetics model anti kinetics model of the first order chemical reaction to the swelling kinetics of the PAA hydrogel in distilled water and physiological Solution were examined. It was found that the possibilities of applying these models were limited. The new model of the kinetics of swelling in distilled water and physiological solution was established. The kinetic parameters (E-a, ln A) for the swelling in distilled water and physiological solution were determined. The decrease of the equilibrium degree of swelling and the saturation swelling rate of the swelling of the PAA hydrogel in physiological solution compared to swelling in distilled water could be explained by the decreased differences in the ionic osmotic pressures between the hydrogel and the swelling medium. The increase of the initial swelling rate in the physiological solution might be caused by an increased density of charges at the network and by an increased affinity of the network towards the water molecules. The increase of the activation energy of the swelling of the PAA hydrogel in the physiological solution is a consequence of its additional "ionic crosslinking"., U radu su ispitivane izotermalne kinetičke krive bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru u temperaturnom opsegu od 20 do 40 °C. Ispitivana je mogućnost primene Fikovog kinetičkog modela kao i kinetike i reda hemijskih reakcija na kinetiku bubrenja poliakrilnog hidrogela.Utvrđeno je da su mogućnosti za njihovu primenu vrlo ograničene. Iz tih razloga primenjen je novi model kinetike bubrenja. Određeni su kinetički parametri (Ea, lnA) za procese bubrenja u destilovanoj vodi i fiziološkom rastvoru. Smanjenje ravnotežnog stepena bubrenja i saturacione brzine bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u fiziološkom rastvoru u odnosu na destilovanu vodu može se objasniti smanjenjem razlike u jonskom osmotskom pritisku između hidrogela i medijuma za bubrenje. Povećanje inicijalne brzine bubrenja u fiziološkom rastvoru u odnosu na destilovanu vodu prouzrokovano je povećanjem gustine naelektrisanja na polimernoj mreži i povećanim afinitetom prema molekulima vode. Povećanje energije aktivacije hidrogela delimično neutralisane poli(akrilne) kiseline pri bubrenju u fiziološkom rastvoru se objašnjava dodatnim "jonskim umreženjem" hidrogela u fiziološkom rastvoru.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution, Poređenje kinetike bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru",
volume = "72",
number = "11",
pages = "1139-1153",
doi = "10.2298/JSC0711139K"
}

Kostić, A. Ž., Adnađević, B., Popović, A. R.,& Jovanovic, J.. (2007). Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 72(11), 1139-1153.
https://doi.org/10.2298/JSC0711139K

Kostić AŽ, Adnađević B, Popović AR, Jovanovic J. Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution. in Journal of the Serbian Chemical Society. 2007;72(11):1139-1153.
doi:10.2298/JSC0711139K .

Kostić, Aleksandar Ž., Adnađević, Borivoj, Popović, Aleksandar R., Jovanovic, Jelena, "Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution" in Journal of the Serbian Chemical Society, 72, no. 11 (2007):1139-1153,
https://doi.org/10.2298/JSC0711139K . .

TY  - JOUR
AU  - Kostić, Aleksandar Ž.
AU  - Jovanovic, J.
AU  - Adnađević, Borivoj
AU  - Popović, Aleksandar R.
PY  - 2007
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/921
AB  - Isothermal kinetics of copper (ion) binding to poly(acrylic acid) (PAA) hydrogel at 20, 25, 35 and 45 C was investigated. Isothermal conversions and kinetic curves of Cu2+ binding to the PAA hydrogel were determined. It was found that the well-known kinetic models of Peppas cannot be applied to describing the entire process of Cu2+ binding. The new method for the determination of the kinetic model of the Cu2+ binding process, as well as the activation energy density distribution functions of PAA hydrogel interaction with Cu2+, were established. It was found that Cu2+ diffusion to the active centers (with E-a = 9 kJ/mol) has a dominant influence on the kinetics of the process at temperatures T  gt = 30 degrees C, but at T  gt = 30 degrees C and for the degree of bound Cu2+ alpha  gt = 0.2, the interaction of Cu2+ from the adsorption center with E-a = 26 kJ/mol is dominant.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel
VL  - 81
IS  - 9
SP  - 1374
EP  - 1379
DO  - 10.1134/S0036024407090051
ER  - 

@article{
author = "Kostić, Aleksandar Ž. and Jovanovic, J. and Adnađević, Borivoj and Popović, Aleksandar R.",
year = "2007",
abstract = "Isothermal kinetics of copper (ion) binding to poly(acrylic acid) (PAA) hydrogel at 20, 25, 35 and 45 C was investigated. Isothermal conversions and kinetic curves of Cu2+ binding to the PAA hydrogel were determined. It was found that the well-known kinetic models of Peppas cannot be applied to describing the entire process of Cu2+ binding. The new method for the determination of the kinetic model of the Cu2+ binding process, as well as the activation energy density distribution functions of PAA hydrogel interaction with Cu2+, were established. It was found that Cu2+ diffusion to the active centers (with E-a = 9 kJ/mol) has a dominant influence on the kinetics of the process at temperatures T  gt = 30 degrees C, but at T  gt = 30 degrees C and for the degree of bound Cu2+ alpha  gt = 0.2, the interaction of Cu2+ from the adsorption center with E-a = 26 kJ/mol is dominant.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel",
volume = "81",
number = "9",
pages = "1374-1379",
doi = "10.1134/S0036024407090051"
}

Kostić, A. Ž., Jovanovic, J., Adnađević, B.,& Popović, A. R.. (2007). Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 81(9), 1374-1379.
https://doi.org/10.1134/S0036024407090051

Kostić AŽ, Jovanovic J, Adnađević B, Popović AR. Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel. in Russian Journal of Physical Chemistry A. 2007;81(9):1374-1379.
doi:10.1134/S0036024407090051 .

Kostić, Aleksandar Ž., Jovanovic, J., Adnađević, Borivoj, Popović, Aleksandar R., "Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel" in Russian Journal of Physical Chemistry A, 81, no. 9 (2007):1374-1379,
https://doi.org/10.1134/S0036024407090051 . .

TY  - JOUR
AU  - Milić, Dragana
AU  - Opsenica, Dejan M.
AU  - Adnađević, Borivoj
AU  - Šolaja, Bogdan A.
PY  - 2000
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/432
AB  - The NaY zeolite catalysed hydrolysis of nitriles to primary amides is reported. It is found that aryl nitriles with strong electron-withdrawing substituents and cyanopyridines are readily hydrolysed in the water suspension, while aliphatic nitriles do not react.
PB  - Molecular Diversity Preservation International, Basel
T2  - Molecules
T1  - NaY zeolite: A useful catalyst for nitrile hydrolysis
VL  - 5
IS  - 2
SP  - 118
EP  - 126
DO  - 10.3390/50200118
ER  - 

@article{
author = "Milić, Dragana and Opsenica, Dejan M. and Adnađević, Borivoj and Šolaja, Bogdan A.",
year = "2000",
abstract = "The NaY zeolite catalysed hydrolysis of nitriles to primary amides is reported. It is found that aryl nitriles with strong electron-withdrawing substituents and cyanopyridines are readily hydrolysed in the water suspension, while aliphatic nitriles do not react.",
publisher = "Molecular Diversity Preservation International, Basel",
journal = "Molecules",
title = "NaY zeolite: A useful catalyst for nitrile hydrolysis",
volume = "5",
number = "2",
pages = "118-126",
doi = "10.3390/50200118"
}

Milić, D., Opsenica, D. M., Adnađević, B.,& Šolaja, B. A.. (2000). NaY zeolite: A useful catalyst for nitrile hydrolysis. in Molecules
Molecular Diversity Preservation International, Basel., 5(2), 118-126.
https://doi.org/10.3390/50200118

Milić D, Opsenica DM, Adnađević B, Šolaja BA. NaY zeolite: A useful catalyst for nitrile hydrolysis. in Molecules. 2000;5(2):118-126.
doi:10.3390/50200118 .

Milić, Dragana, Opsenica, Dejan M., Adnađević, Borivoj, Šolaja, Bogdan A., "NaY zeolite: A useful catalyst for nitrile hydrolysis" in Molecules, 5, no. 2 (2000):118-126,
https://doi.org/10.3390/50200118 . .