TY  - JOUR
AU  - Dimitrijević, Stevan P.
AU  - Dimitrijević, Silvana B.
AU  - Ivanović, Aleksandra
AU  - Vuković, Nikola
AU  - Dhawan, Nikhil
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/627
AB  - This study investigates the electrochemical stability of the gold complex based on mercaptotriazole at an optimum pH of nine in the electrolyte with a gold concentration of 2.5 g dm(-3). The stability of the complex was studied by visual monitoring and electrochemical characterization of electrolytes over a period of 1 year. Electrochemical characterization of the mercaptotriazole gold complex was performed using open circuit potential measurement, cyclic voltammetry, recording the polarization curves, pH, and conductivity of the electrolyte. Electrochemical characteristics and visual appearance of the mercaptotriazole gold complex at a pH similar to 9 were not significantly changed for one year, with no changes in its visual appearance. The results of this study are important for industrial applications in order to replace cyanide electrolytes with a stable organic complex.
PB  - Springer Int Publ Ag, Cham
T2  - Chemical Papers
T1  - Electrochemical stability of gold complex based on mercaptotriazole at optimal condition
EP  - 7832
IS  - 12
SP  - 7823
VL  - 76
DO  - 10.1007/s11696-022-02447-y
UR  - conv_952
ER  - 

@article{
author = "Dimitrijević, Stevan P. and Dimitrijević, Silvana B. and Ivanović, Aleksandra and Vuković, Nikola and Dhawan, Nikhil",
year = "2022",
abstract = "This study investigates the electrochemical stability of the gold complex based on mercaptotriazole at an optimum pH of nine in the electrolyte with a gold concentration of 2.5 g dm(-3). The stability of the complex was studied by visual monitoring and electrochemical characterization of electrolytes over a period of 1 year. Electrochemical characterization of the mercaptotriazole gold complex was performed using open circuit potential measurement, cyclic voltammetry, recording the polarization curves, pH, and conductivity of the electrolyte. Electrochemical characteristics and visual appearance of the mercaptotriazole gold complex at a pH similar to 9 were not significantly changed for one year, with no changes in its visual appearance. The results of this study are important for industrial applications in order to replace cyanide electrolytes with a stable organic complex.",
publisher = "Springer Int Publ Ag, Cham",
journal = "Chemical Papers",
title = "Electrochemical stability of gold complex based on mercaptotriazole at optimal condition",
pages = "7832-7823",
number = "12",
volume = "76",
doi = "10.1007/s11696-022-02447-y",
url = "conv_952"
}

Dimitrijević, S. P., Dimitrijević, S. B., Ivanović, A., Vuković, N.,& Dhawan, N.. (2022). Electrochemical stability of gold complex based on mercaptotriazole at optimal condition. in Chemical Papers
Springer Int Publ Ag, Cham., 76(12), 7823-7832.
https://doi.org/10.1007/s11696-022-02447-y
conv_952

Dimitrijević SP, Dimitrijević SB, Ivanović A, Vuković N, Dhawan N. Electrochemical stability of gold complex based on mercaptotriazole at optimal condition. in Chemical Papers. 2022;76(12):7823-7832.
doi:10.1007/s11696-022-02447-y
conv_952 .

Dimitrijević, Stevan P., Dimitrijević, Silvana B., Ivanović, Aleksandra, Vuković, Nikola, Dhawan, Nikhil, "Electrochemical stability of gold complex based on mercaptotriazole at optimal condition" in Chemical Papers, 76, no. 12 (2022):7823-7832,
https://doi.org/10.1007/s11696-022-02447-y .,
conv_952 .

TY  - CONF
AU  - Dimitrijević, Silvana
AU  - Ivanović, Aleksandra
AU  - Magdalinović, Srđana
AU  - Ivanović, Saša
AU  - Krstić, Slađana
AU  - Trumić, Biserka
AU  - Dragulović, Suzana
AU  - Pantović, Katarina
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1212
AB  - The aim of this study was the recycling of platinum from crucibles for melting and casting. This paper has considered the possibility of direct melting of crucibles as well as the possibility of processing the crucibles by PMS methods (shaking table and flotation concentration). Laboratory studies have shown that leaching of ground crucibles in sulfuric acid has achieved the leaching degree of magnesium oxide of 99.98% thus providing a material suitable for melting.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XXIV International Conference "ECOLOGICAL TRUTH" Eco-Ist'16
T1  - Recycling of platinum from crucibles for melting and casting
EP  - 333
SP  - 327
ER  - 

@conference{
author = "Dimitrijević, Silvana and Ivanović, Aleksandra and Magdalinović, Srđana and Ivanović, Saša and Krstić, Slađana and Trumić, Biserka and Dragulović, Suzana and Pantović, Katarina",
year = "2016",
abstract = "The aim of this study was the recycling of platinum from crucibles for melting and casting. This paper has considered the possibility of direct melting of crucibles as well as the possibility of processing the crucibles by PMS methods (shaking table and flotation concentration). Laboratory studies have shown that leaching of ground crucibles in sulfuric acid has achieved the leaching degree of magnesium oxide of 99.98% thus providing a material suitable for melting.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XXIV International Conference "ECOLOGICAL TRUTH" Eco-Ist'16",
title = "Recycling of platinum from crucibles for melting and casting",
pages = "333-327"
}

Dimitrijević, S., Ivanović, A., Magdalinović, S., Ivanović, S., Krstić, S., Trumić, B., Dragulović, S.,& Pantović, K.. (2016). Recycling of platinum from crucibles for melting and casting. in XXIV International Conference "ECOLOGICAL TRUTH" Eco-Ist'16
Bor : University of Belgrade, Technical Faculty in Bor., 327-333.

Dimitrijević S, Ivanović A, Magdalinović S, Ivanović S, Krstić S, Trumić B, Dragulović S, Pantović K. Recycling of platinum from crucibles for melting and casting. in XXIV International Conference "ECOLOGICAL TRUTH" Eco-Ist'16. 2016;:327-333..

Dimitrijević, Silvana, Ivanović, Aleksandra, Magdalinović, Srđana, Ivanović, Saša, Krstić, Slađana, Trumić, Biserka, Dragulović, Suzana, Pantović, Katarina, "Recycling of platinum from crucibles for melting and casting" in XXIV International Conference "ECOLOGICAL TRUTH" Eco-Ist'16 (2016):327-333.

TY  - JOUR
AU  - Dimitrijević, Stevan P.
AU  - Andić, Z.
AU  - Kamberović, Željko
AU  - Dimitrijević, Silvana B.
AU  - Vuković, Nikola
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/296
AB  - The paper presents an improved process for recycling of silver-plate brass housing. Silver and copper are recovered with a purity of 99.99 % and 99.90 %, respectively, with the aim of obtaining materials of higher value using additional procedures based on the same process and equipment. The novel approach with subsequent electrorefining yields copper of 99.99 % purity with BS EN 1978:1998 (Cu-CATH-1) quality and is referred to as LME grade A. Additional processing of silver results in superfine, micro-sized Ag powder with partie size from 0.14 to 1.13 mu m and purity of 99.999 %. Copper electrorefining tests were performed using 1.50 dm(3) of synthetic electrolyte in a 2 dm(3) electrolytic cell. Effects of current density and electrolyte composition were investigated. Optimal current density for the first and second refining was 120 A/m(2) and 200 A/m(2), respectively. Additional refining of silver was performed by chemical reduction from an aqueous solution. Optimal results were obtained with ascorbic acid as a reduction agent in concentration of 0.1 mol/dm(3) and polyvinylpyrrolidon as a protective agent in concentration of 2 % by mass. The investigation results could be adopted into production.
PB  - Bulgarian Academy of Sciences
T2  - Bulgarian Chemical Communications
T1  - Recycling of silver-plated brass for production of high purity copper and ultrafine silver powder for electric contacts
EP  - 824
IS  - 4
SP  - 814
VL  - 46
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2553
UR  - conv_1046
ER  - 

@article{
author = "Dimitrijević, Stevan P. and Andić, Z. and Kamberović, Željko and Dimitrijević, Silvana B. and Vuković, Nikola",
year = "2014",
abstract = "The paper presents an improved process for recycling of silver-plate brass housing. Silver and copper are recovered with a purity of 99.99 % and 99.90 %, respectively, with the aim of obtaining materials of higher value using additional procedures based on the same process and equipment. The novel approach with subsequent electrorefining yields copper of 99.99 % purity with BS EN 1978:1998 (Cu-CATH-1) quality and is referred to as LME grade A. Additional processing of silver results in superfine, micro-sized Ag powder with partie size from 0.14 to 1.13 mu m and purity of 99.999 %. Copper electrorefining tests were performed using 1.50 dm(3) of synthetic electrolyte in a 2 dm(3) electrolytic cell. Effects of current density and electrolyte composition were investigated. Optimal current density for the first and second refining was 120 A/m(2) and 200 A/m(2), respectively. Additional refining of silver was performed by chemical reduction from an aqueous solution. Optimal results were obtained with ascorbic acid as a reduction agent in concentration of 0.1 mol/dm(3) and polyvinylpyrrolidon as a protective agent in concentration of 2 % by mass. The investigation results could be adopted into production.",
publisher = "Bulgarian Academy of Sciences",
journal = "Bulgarian Chemical Communications",
title = "Recycling of silver-plated brass for production of high purity copper and ultrafine silver powder for electric contacts",
pages = "824-814",
number = "4",
volume = "46",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2553, conv_1046"
}

Dimitrijević, S. P., Andić, Z., Kamberović, Ž., Dimitrijević, S. B.,& Vuković, N.. (2014). Recycling of silver-plated brass for production of high purity copper and ultrafine silver powder for electric contacts. in Bulgarian Chemical Communications
Bulgarian Academy of Sciences., 46(4), 814-824.
https://hdl.handle.net/21.15107/rcub_technorep_2553

Dimitrijević SP, Andić Z, Kamberović Ž, Dimitrijević SB, Vuković N. Recycling of silver-plated brass for production of high purity copper and ultrafine silver powder for electric contacts. in Bulgarian Chemical Communications. 2014;46(4):814-824.
https://hdl.handle.net/21.15107/rcub_technorep_2553 .

Dimitrijević, Stevan P., Andić, Z., Kamberović, Željko, Dimitrijević, Silvana B., Vuković, Nikola, "Recycling of silver-plated brass for production of high purity copper and ultrafine silver powder for electric contacts" in Bulgarian Chemical Communications, 46, no. 4 (2014):814-824,
https://hdl.handle.net/21.15107/rcub_technorep_2553 .

TY  - JOUR
AU  - Ivanović, Aleksandra
AU  - Dimitrijević, Silvana B.
AU  - Dimitrijević, S.
AU  - Trumić, Biserka T.
AU  - Marjanović, V.
AU  - Petrović, J.
AU  - Vuković, Nikola
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/248
AB  - The aim of this work was to investigate the process of electrodeposition of silver powder from nitrate electrolyte for usage in electronic. It was performed a series of experiments to test the solubility of silver powder in nitric acid and the effect of Cu+, Pb2+ and Cr2+ ions on the properties of the silver powder. The morphology of silver powder obtained from nitrate electrolyte, was studied using the scanning electron microscope (SEM model: JOEL JSM-6610LV). Chemical composition of the silver powder was determined using the Energy Dispersive X-ray Spectroscopy (EDS). The EDS spectra for silver powder were recorded using the X-ray spectrometer, attached to the scanning electron microscope.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - Electrodeposition of silver powder from nitrate electrolyte for usage in electronic
EP  - 473
IS  - 3-4
SP  - 465
VL  - 6
UR  - conv_625
ER  - 

@article{
author = "Ivanović, Aleksandra and Dimitrijević, Silvana B. and Dimitrijević, S. and Trumić, Biserka T. and Marjanović, V. and Petrović, J. and Vuković, Nikola",
year = "2012",
abstract = "The aim of this work was to investigate the process of electrodeposition of silver powder from nitrate electrolyte for usage in electronic. It was performed a series of experiments to test the solubility of silver powder in nitric acid and the effect of Cu+, Pb2+ and Cr2+ ions on the properties of the silver powder. The morphology of silver powder obtained from nitrate electrolyte, was studied using the scanning electron microscope (SEM model: JOEL JSM-6610LV). Chemical composition of the silver powder was determined using the Energy Dispersive X-ray Spectroscopy (EDS). The EDS spectra for silver powder were recorded using the X-ray spectrometer, attached to the scanning electron microscope.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "Electrodeposition of silver powder from nitrate electrolyte for usage in electronic",
pages = "473-465",
number = "3-4",
volume = "6",
url = "conv_625"
}

Ivanović, A., Dimitrijević, S. B., Dimitrijević, S., Trumić, B. T., Marjanović, V., Petrović, J.,& Vuković, N.. (2012). Electrodeposition of silver powder from nitrate electrolyte for usage in electronic. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 6(3-4), 465-473.
conv_625

Ivanović A, Dimitrijević SB, Dimitrijević S, Trumić BT, Marjanović V, Petrović J, Vuković N. Electrodeposition of silver powder from nitrate electrolyte for usage in electronic. in Optoelectronics and Advanced Materials-Rapid Communications. 2012;6(3-4):465-473.
conv_625 .

Ivanović, Aleksandra, Dimitrijević, Silvana B., Dimitrijević, S., Trumić, Biserka T., Marjanović, V., Petrović, J., Vuković, Nikola, "Electrodeposition of silver powder from nitrate electrolyte for usage in electronic" in Optoelectronics and Advanced Materials-Rapid Communications, 6, no. 3-4 (2012):465-473,
conv_625 .