TY  - CONF
AU  - Trumić, Milan
AU  - Trumić, Maja
AU  - Radulović, Dragan
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1099
AB  - An experimental investigation has been made into the effects of different factors on the results of screening efficiency of polymer samples. The used polyvinyl chloride (PVC) samples have equal content of `small`, `large` and `small-to large` particles and filled the whole area of the sieve in one, two and four characteristic layers during the screening. Visual examination showed that the particle shape was similar in whole particle size distribution in the one sample tested. In addition to the aforementioned variable, the other factors studied included samples shape, vibrating amplitude and the duration of screening. Analysis of the obtained results of the screening rate in laboratory conditions was performed by applying the classical and modified model of the first order screening kinetics. The results showed that high loading of the sieve requires a larger vibrating amplitude for good classification and that the high layer reduction of sample is a more effective remedy for good efficiency than prolongation of sieving time. It has also been shown that the particles shape has a significant impact on the screening rate. The modified kinetics model (Magdalinović–Trumić) of the first order describes polymer screening kinetics with very good correlation coefficient in all cases. The application of the classical model is not adequate for determining a screening rate constant since the correlation coefficients are smaller than the minimum correlation coefficient.
PB  - Miskolci : Miskolci University Hungary
C3  - International V4 Waste Recycling XXI Conference
T1  - The effect of sieve loading and particles shape on the results of polymer sieve kinetics
EP  - 114
SP  - 105
ER  - 

@conference{
author = "Trumić, Milan and Trumić, Maja and Radulović, Dragan",
year = "2018",
abstract = "An experimental investigation has been made into the effects of different factors on the results of screening efficiency of polymer samples. The used polyvinyl chloride (PVC) samples have equal content of `small`, `large` and `small-to large` particles and filled the whole area of the sieve in one, two and four characteristic layers during the screening. Visual examination showed that the particle shape was similar in whole particle size distribution in the one sample tested. In addition to the aforementioned variable, the other factors studied included samples shape, vibrating amplitude and the duration of screening. Analysis of the obtained results of the screening rate in laboratory conditions was performed by applying the classical and modified model of the first order screening kinetics. The results showed that high loading of the sieve requires a larger vibrating amplitude for good classification and that the high layer reduction of sample is a more effective remedy for good efficiency than prolongation of sieving time. It has also been shown that the particles shape has a significant impact on the screening rate. The modified kinetics model (Magdalinović–Trumić) of the first order describes polymer screening kinetics with very good correlation coefficient in all cases. The application of the classical model is not adequate for determining a screening rate constant since the correlation coefficients are smaller than the minimum correlation coefficient.",
publisher = "Miskolci : Miskolci University Hungary",
journal = "International V4 Waste Recycling XXI Conference",
title = "The effect of sieve loading and particles shape on the results of polymer sieve kinetics",
pages = "114-105"
}

Trumić, M., Trumić, M.,& Radulović, D.. (2018). The effect of sieve loading and particles shape on the results of polymer sieve kinetics. in International V4 Waste Recycling XXI Conference
Miskolci : Miskolci University Hungary., 105-114.

Trumić M, Trumić M, Radulović D. The effect of sieve loading and particles shape on the results of polymer sieve kinetics. in International V4 Waste Recycling XXI Conference. 2018;:105-114..

Trumić, Milan, Trumić, Maja, Radulović, Dragan, "The effect of sieve loading and particles shape on the results of polymer sieve kinetics" in International V4 Waste Recycling XXI Conference (2018):105-114.

TY  - JOUR
AU  - Dimitrijević, M.
AU  - Urošević, Daniela
AU  - Milić, S.
AU  - Sokić, Miroslav
AU  - Marković, R.
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/445
AB  - Leaching of copper smelting slag in chloride media was studied. The lixiviants used were aqueous solutions of hydrochloric acid (0.5-2.0 M HCl) as well as hydrogen peroxide and hydrochloric acid (0.5-3.0 M H2O2, 1.0 M HCl). The maximum final copper extraction from the slag of 73% was attained with 3 M H2O2, at room temperature after 120 minutes of reaction. At the same time, 55% of the iron from the slag was also dissolved. The copper extraction increased during the first 60 minutes of reaction and essentially ceased thereafter. Because of a rapid catalytic decomposition of hydrogen peroxide, it should be added continuously to the leach suspension rather than at once at the beginning of the experiment. In fact, it appears that almost complete dissolution of copper from the slag is achievable after about 4 hours of leaching by implementing the method of continuous lixiviant addition. Also, it seems that the final iron extraction could be limited to as low as 20% by using this method.
PB  - Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd
T2  - Journal of Mining and Metallurgy Section B-Metallurgy
T1  - Dissolution of copper from smelting slag by leaching in chloride media
EP  - 412
IS  - 3
SP  - 407
VL  - 53
DO  - 10.2298/JMMB170425016D
UR  - conv_810
ER  - 

@article{
author = "Dimitrijević, M. and Urošević, Daniela and Milić, S. and Sokić, Miroslav and Marković, R.",
year = "2017",
abstract = "Leaching of copper smelting slag in chloride media was studied. The lixiviants used were aqueous solutions of hydrochloric acid (0.5-2.0 M HCl) as well as hydrogen peroxide and hydrochloric acid (0.5-3.0 M H2O2, 1.0 M HCl). The maximum final copper extraction from the slag of 73% was attained with 3 M H2O2, at room temperature after 120 minutes of reaction. At the same time, 55% of the iron from the slag was also dissolved. The copper extraction increased during the first 60 minutes of reaction and essentially ceased thereafter. Because of a rapid catalytic decomposition of hydrogen peroxide, it should be added continuously to the leach suspension rather than at once at the beginning of the experiment. In fact, it appears that almost complete dissolution of copper from the slag is achievable after about 4 hours of leaching by implementing the method of continuous lixiviant addition. Also, it seems that the final iron extraction could be limited to as low as 20% by using this method.",
publisher = "Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd",
journal = "Journal of Mining and Metallurgy Section B-Metallurgy",
title = "Dissolution of copper from smelting slag by leaching in chloride media",
pages = "412-407",
number = "3",
volume = "53",
doi = "10.2298/JMMB170425016D",
url = "conv_810"
}

Dimitrijević, M., Urošević, D., Milić, S., Sokić, M.,& Marković, R.. (2017). Dissolution of copper from smelting slag by leaching in chloride media. in Journal of Mining and Metallurgy Section B-Metallurgy
Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd., 53(3), 407-412.
https://doi.org/10.2298/JMMB170425016D
conv_810

Dimitrijević M, Urošević D, Milić S, Sokić M, Marković R. Dissolution of copper from smelting slag by leaching in chloride media. in Journal of Mining and Metallurgy Section B-Metallurgy. 2017;53(3):407-412.
doi:10.2298/JMMB170425016D
conv_810 .

Dimitrijević, M., Urošević, Daniela, Milić, S., Sokić, Miroslav, Marković, R., "Dissolution of copper from smelting slag by leaching in chloride media" in Journal of Mining and Metallurgy Section B-Metallurgy, 53, no. 3 (2017):407-412,
https://doi.org/10.2298/JMMB170425016D .,
conv_810 .