The Impact of Mining Wastes from RTB Bor on the Pollution of Surrounding Water Systems with the Proposal of Measures and Procedures for Reduction the Harmful Effects on the Environment

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The Impact of Mining Wastes from RTB Bor on the Pollution of Surrounding Water Systems with the Proposal of Measures and Procedures for Reduction the Harmful Effects on the Environment (en)
Утицај рударског отпада из РТБ-а Бор на загађење водотокова са предлогом мера и поступака за смањење штетног дејства на животну средину (sr)
Uticaj rudarskog otpada iz RTB-a Bor na zagađenje vodotokova sa predlogom mera i postupaka za smanjenje štetnog dejstva na životnu sredinu (sr_RS)
Authors

Publications

Sitting position awake craniostomy with drainage for chronic subdural hematoma: a viable alternative?

Lepic, Milan; Mandic-Rajcevic, Stefan; Pavlicevic, Goran; Savic, Andrija; Lokaj, Aleksandra; Rasulic, Lukas

(2021)

TY  - JOUR
AU  - Lepic, Milan
AU  - Mandic-Rajcevic, Stefan
AU  - Pavlicevic, Goran
AU  - Savic, Andrija
AU  - Lokaj, Aleksandra
AU  - Rasulic, Lukas
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4932
AB  - Background/Aim. Chronic subdural hematoma (CSDH) is one of the most frequent neurosurgical conditions with an overall incidence ranging from 1.72 to 20.6 per 100,000 persons per year. The surgical procedure for CSDH is relatively simple and usually performed in the supine position. Reported reoccurrence rates range from 11.7% to 28%. Postperative pneumocephalus was previously identified as a sole predictor of reoccurrence. The aim of this study was to assess the advantage of the procedure in the sitting position in patients with CSDH and a possible impact on the reoccurrence rate. Methods. The study included 31 patients who underwent awake craniostomy with closed system drainage for CSDH (16 in supine and 15 in sitting position) in our department from December 2016 to March 2018. Results. A total of 22 males and 9 females were included in the study. The overall reoccurrence rate was 19% (22% and 18% in females and males, respectively). The reoccurrence was noted in 5 patients who had undergone surgery in the supine position, and in one case in the sitting position. Our results revealed a lower reoccurrence rate in patients undergoing surgery in the sitting position, although not reaching statistical significance [ odds ratio (OR): 0.18, 95% confidence interval: 0.01-1.42, p = 0.172]. Conclusion. Craniostomy in the sitting position under local anesthesia is a safe, simple, and reliable procedure for CSDH treatment. Besides being very comfortable for the patient, according to our initial results, it might also lead to a lower reoccurrence rate, probably due to the better management of the air inflow, and consequent pneumocephalus.
T2  - Vojnosanitetski Pregled
T1  - Sitting position awake craniostomy with drainage for chronic subdural hematoma: a viable alternative?
EP  - 562
IS  - 5
SP  - 556
VL  - 78
DO  - 10.2298/VSP190611093L
ER  - 
@article{
author = "Lepic, Milan and Mandic-Rajcevic, Stefan and Pavlicevic, Goran and Savic, Andrija and Lokaj, Aleksandra and Rasulic, Lukas",
year = "2021",
abstract = "Background/Aim. Chronic subdural hematoma (CSDH) is one of the most frequent neurosurgical conditions with an overall incidence ranging from 1.72 to 20.6 per 100,000 persons per year. The surgical procedure for CSDH is relatively simple and usually performed in the supine position. Reported reoccurrence rates range from 11.7% to 28%. Postperative pneumocephalus was previously identified as a sole predictor of reoccurrence. The aim of this study was to assess the advantage of the procedure in the sitting position in patients with CSDH and a possible impact on the reoccurrence rate. Methods. The study included 31 patients who underwent awake craniostomy with closed system drainage for CSDH (16 in supine and 15 in sitting position) in our department from December 2016 to March 2018. Results. A total of 22 males and 9 females were included in the study. The overall reoccurrence rate was 19% (22% and 18% in females and males, respectively). The reoccurrence was noted in 5 patients who had undergone surgery in the supine position, and in one case in the sitting position. Our results revealed a lower reoccurrence rate in patients undergoing surgery in the sitting position, although not reaching statistical significance [ odds ratio (OR): 0.18, 95% confidence interval: 0.01-1.42, p = 0.172]. Conclusion. Craniostomy in the sitting position under local anesthesia is a safe, simple, and reliable procedure for CSDH treatment. Besides being very comfortable for the patient, according to our initial results, it might also lead to a lower reoccurrence rate, probably due to the better management of the air inflow, and consequent pneumocephalus.",
journal = "Vojnosanitetski Pregled",
title = "Sitting position awake craniostomy with drainage for chronic subdural hematoma: a viable alternative?",
pages = "562-556",
number = "5",
volume = "78",
doi = "10.2298/VSP190611093L"
}
Lepic, M., Mandic-Rajcevic, S., Pavlicevic, G., Savic, A., Lokaj, A.,& Rasulic, L.. (2021). Sitting position awake craniostomy with drainage for chronic subdural hematoma: a viable alternative?. in Vojnosanitetski Pregled, 78(5), 556-562.
https://doi.org/10.2298/VSP190611093L
Lepic M, Mandic-Rajcevic S, Pavlicevic G, Savic A, Lokaj A, Rasulic L. Sitting position awake craniostomy with drainage for chronic subdural hematoma: a viable alternative?. in Vojnosanitetski Pregled. 2021;78(5):556-562.
doi:10.2298/VSP190611093L .
Lepic, Milan, Mandic-Rajcevic, Stefan, Pavlicevic, Goran, Savic, Andrija, Lokaj, Aleksandra, Rasulic, Lukas, "Sitting position awake craniostomy with drainage for chronic subdural hematoma: a viable alternative?" in Vojnosanitetski Pregled, 78, no. 5 (2021):556-562,
https://doi.org/10.2298/VSP190611093L . .
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Experimental densities and derived thermodynamic properties of pure p-cymene, alpha-pinene, limonene and citral under high pressure conditions

Ilić-Pajić, Jovana; Ivaniš, Gorica; Radović, Ivona; Grujić, Aleksandar; Stajić-Trošić, Jasna; Stijepović, Mirko; Kijevčanin, Mirjana

(Academic Press Ltd- Elsevier Science Ltd, London, 2020)

TY  - JOUR
AU  - Ilić-Pajić, Jovana
AU  - Ivaniš, Gorica
AU  - Radović, Ivona
AU  - Grujić, Aleksandar
AU  - Stajić-Trošić, Jasna
AU  - Stijepović, Mirko
AU  - Kijevčanin, Mirjana
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4474
AB  - In order to reduce negative influence of fossil fuels on environment, use of various renewable resources is highly promoted. Terpenes, naturally occurring in plants, can be added to petroleum fuel as its substitute up to a certain share. Thermodynamic properties of a fuel under high pressure and moderate temperature conditions are of significant importance for engine efficiency. This work reports density measurements of pure p-cymene, alpha-pinene, limonene and citral at temperatures (293.15-413.15) K and pressures (0.1-60) MPa, applying an Anton Paar DMA HP measuring cell. Density data were fitted by modified Tammann-Tait equation where the absolute average percentage deviation between measured and calculated densities was about 0.010%. The obtained parameters were used to estimate the isothermal compressibility, the isobaric thermal expansion coefficient, the internal pressure, and the difference between specific heat capacity at constant pressure and at constant volume. For examined compounds, all thermodynamic properties, except the internal pressure, decrease with pressure rise along an isotherm and increase as temperature increases at a constant pressure. The intersection point of isotherms for the isobaric thermal expansion coefficient for pure citral was registered at pressure 47 MPa, while for other analyzed terpenes the intersection point is above 60 MPa, outside the measurements pressure range.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Chemical Thermodynamics
T1  - Experimental densities and derived thermodynamic properties of pure p-cymene, alpha-pinene, limonene and citral under high pressure conditions
VL  - 144
DO  - 10.1016/j.jct.2020.106065
ER  - 
@article{
author = "Ilić-Pajić, Jovana and Ivaniš, Gorica and Radović, Ivona and Grujić, Aleksandar and Stajić-Trošić, Jasna and Stijepović, Mirko and Kijevčanin, Mirjana",
year = "2020",
abstract = "In order to reduce negative influence of fossil fuels on environment, use of various renewable resources is highly promoted. Terpenes, naturally occurring in plants, can be added to petroleum fuel as its substitute up to a certain share. Thermodynamic properties of a fuel under high pressure and moderate temperature conditions are of significant importance for engine efficiency. This work reports density measurements of pure p-cymene, alpha-pinene, limonene and citral at temperatures (293.15-413.15) K and pressures (0.1-60) MPa, applying an Anton Paar DMA HP measuring cell. Density data were fitted by modified Tammann-Tait equation where the absolute average percentage deviation between measured and calculated densities was about 0.010%. The obtained parameters were used to estimate the isothermal compressibility, the isobaric thermal expansion coefficient, the internal pressure, and the difference between specific heat capacity at constant pressure and at constant volume. For examined compounds, all thermodynamic properties, except the internal pressure, decrease with pressure rise along an isotherm and increase as temperature increases at a constant pressure. The intersection point of isotherms for the isobaric thermal expansion coefficient for pure citral was registered at pressure 47 MPa, while for other analyzed terpenes the intersection point is above 60 MPa, outside the measurements pressure range.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Chemical Thermodynamics",
title = "Experimental densities and derived thermodynamic properties of pure p-cymene, alpha-pinene, limonene and citral under high pressure conditions",
volume = "144",
doi = "10.1016/j.jct.2020.106065"
}
Ilić-Pajić, J., Ivaniš, G., Radović, I., Grujić, A., Stajić-Trošić, J., Stijepović, M.,& Kijevčanin, M.. (2020). Experimental densities and derived thermodynamic properties of pure p-cymene, alpha-pinene, limonene and citral under high pressure conditions. in Journal of Chemical Thermodynamics
Academic Press Ltd- Elsevier Science Ltd, London., 144.
https://doi.org/10.1016/j.jct.2020.106065
Ilić-Pajić J, Ivaniš G, Radović I, Grujić A, Stajić-Trošić J, Stijepović M, Kijevčanin M. Experimental densities and derived thermodynamic properties of pure p-cymene, alpha-pinene, limonene and citral under high pressure conditions. in Journal of Chemical Thermodynamics. 2020;144.
doi:10.1016/j.jct.2020.106065 .
Ilić-Pajić, Jovana, Ivaniš, Gorica, Radović, Ivona, Grujić, Aleksandar, Stajić-Trošić, Jasna, Stijepović, Mirko, Kijevčanin, Mirjana, "Experimental densities and derived thermodynamic properties of pure p-cymene, alpha-pinene, limonene and citral under high pressure conditions" in Journal of Chemical Thermodynamics, 144 (2020),
https://doi.org/10.1016/j.jct.2020.106065 . .
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A Spontaneous Cervical Epidural Hematoma Mimicking a Stroke: A Challenging Case

Pavlićević, Goran; Lepić, Milan; Lepić, Toplica; Jaćimović, Nemanja; Radenović, Ksenija; Novaković, Nenad; Rasulić, Lukas; Mandić-Rajčević, Stefan

(Elsevier USA, 2019)

TY  - JOUR
AU  - Pavlićević, Goran
AU  - Lepić, Milan
AU  - Lepić, Toplica
AU  - Jaćimović, Nemanja
AU  - Radenović, Ksenija
AU  - Novaković, Nenad
AU  - Rasulić, Lukas
AU  - Mandić-Rajčević, Stefan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5882
AB  - Background: A spontaneous cervical epidural hematoma (SCEH) is a rare occurrence, with < 500 cases reported to date. Clinically, it usually presents with quadriparesis, but in extremely rare cases it can present with hemiparesis or hemiplegia, and can easily be misdiagnosed as stroke. The cervical epidural hematoma by itself is an urgent condition that requires a quick and accurate diagnosis and a prompt surgical treatment. Case Report: We present a case where an SCEH mimicked the much more frequent condition of a stroke, and discuss the importance of diagnostics procedures that help differentiate SCEH from acute cerebral infarction. The patient's history of neck pain and spondylosis render this case more challenging. Why Should an Emergency Physician Be Aware of This?: Considering that the emergency tissue plasminogen activator treatment for acute cerebral infarction can worsen the state of an SCEH patient, or even lead to permanent damage or death, it is of great importance to rapidly and accurately differentiate these two conditions.
PB  - Elsevier USA
T2  - Journal of Emergency Medicine
T1  - A Spontaneous Cervical Epidural Hematoma Mimicking a Stroke: A Challenging Case
EP  - 73
IS  - 1
SP  - 70
VL  - 57
DO  - 10.1016/j.jemermed.2019.03.035
ER  - 
@article{
author = "Pavlićević, Goran and Lepić, Milan and Lepić, Toplica and Jaćimović, Nemanja and Radenović, Ksenija and Novaković, Nenad and Rasulić, Lukas and Mandić-Rajčević, Stefan",
year = "2019",
abstract = "Background: A spontaneous cervical epidural hematoma (SCEH) is a rare occurrence, with < 500 cases reported to date. Clinically, it usually presents with quadriparesis, but in extremely rare cases it can present with hemiparesis or hemiplegia, and can easily be misdiagnosed as stroke. The cervical epidural hematoma by itself is an urgent condition that requires a quick and accurate diagnosis and a prompt surgical treatment. Case Report: We present a case where an SCEH mimicked the much more frequent condition of a stroke, and discuss the importance of diagnostics procedures that help differentiate SCEH from acute cerebral infarction. The patient's history of neck pain and spondylosis render this case more challenging. Why Should an Emergency Physician Be Aware of This?: Considering that the emergency tissue plasminogen activator treatment for acute cerebral infarction can worsen the state of an SCEH patient, or even lead to permanent damage or death, it is of great importance to rapidly and accurately differentiate these two conditions.",
publisher = "Elsevier USA",
journal = "Journal of Emergency Medicine",
title = "A Spontaneous Cervical Epidural Hematoma Mimicking a Stroke: A Challenging Case",
pages = "73-70",
number = "1",
volume = "57",
doi = "10.1016/j.jemermed.2019.03.035"
}
Pavlićević, G., Lepić, M., Lepić, T., Jaćimović, N., Radenović, K., Novaković, N., Rasulić, L.,& Mandić-Rajčević, S.. (2019). A Spontaneous Cervical Epidural Hematoma Mimicking a Stroke: A Challenging Case. in Journal of Emergency Medicine
Elsevier USA., 57(1), 70-73.
https://doi.org/10.1016/j.jemermed.2019.03.035
Pavlićević G, Lepić M, Lepić T, Jaćimović N, Radenović K, Novaković N, Rasulić L, Mandić-Rajčević S. A Spontaneous Cervical Epidural Hematoma Mimicking a Stroke: A Challenging Case. in Journal of Emergency Medicine. 2019;57(1):70-73.
doi:10.1016/j.jemermed.2019.03.035 .
Pavlićević, Goran, Lepić, Milan, Lepić, Toplica, Jaćimović, Nemanja, Radenović, Ksenija, Novaković, Nenad, Rasulić, Lukas, Mandić-Rajčević, Stefan, "A Spontaneous Cervical Epidural Hematoma Mimicking a Stroke: A Challenging Case" in Journal of Emergency Medicine, 57, no. 1 (2019):70-73,
https://doi.org/10.1016/j.jemermed.2019.03.035 . .
2
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2

The Application of a Natural Zeolite for Acid Mine Drainage Purification

Marković, Radmila; Gardić, Vojka; Obradović, Ljubiša; Đorđievski, Stefan; Stevanović, Zoran; Stevanović, Jasmina; Gvozdenović, Milica

(Japan Inst Metals & Materials, Sendai, 2015)

TY  - JOUR
AU  - Marković, Radmila
AU  - Gardić, Vojka
AU  - Obradović, Ljubiša
AU  - Đorđievski, Stefan
AU  - Stevanović, Zoran
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3097
AB  - A natural zeolite from Serbia was employed for the removal of heavy metals from acid mine drainage (AMD) generated in the area of copper mine. The efficiency of the natural zeolite samples was tested on AMD that contained manganese, copper, zinc, nickel and cadmium ions in the concentrations above the maximal allowed, according to existing legislation. The results of X-ray diffraction (XRD) analyses of natural zeolite having a particle size of -1 + 0.3 mm, confirmed that the clinoptilolite (Al1.6H30Ca2.06O4756Si164) is a dominant mineral of mine tuff. A dynamic method was used for the experiments in order to simulate real conditions in an industrially relevant environment. The effect of the flow rate of AMD, type of columns and zeolite classes on the degree of adsorption of the heavy metals from AMD was investigated. The results of chemical analyses of treated AMD samples at a flow rate of 0.0033 dm(3)s(-1) which corresponds to the spontaneous outflow from the real accumulation indicate that concentrations of heavy metals are not decreased below that allowed for defined recipient class, except for copper. Also, these results show that the heavy metal ion removal serie for the industrially relevant environment can be given as: Cu  gt  Zn  gt  Cd  gt  Mn  gt  Ni.
PB  - Japan Inst Metals & Materials, Sendai
T2  - Materials Transactions
T1  - The Application of a Natural Zeolite for Acid Mine Drainage Purification
EP  - 2057
IS  - 12
SP  - 2053
VL  - 56
DO  - 10.2320/matertrans.M2015292
ER  - 
@article{
author = "Marković, Radmila and Gardić, Vojka and Obradović, Ljubiša and Đorđievski, Stefan and Stevanović, Zoran and Stevanović, Jasmina and Gvozdenović, Milica",
year = "2015",
abstract = "A natural zeolite from Serbia was employed for the removal of heavy metals from acid mine drainage (AMD) generated in the area of copper mine. The efficiency of the natural zeolite samples was tested on AMD that contained manganese, copper, zinc, nickel and cadmium ions in the concentrations above the maximal allowed, according to existing legislation. The results of X-ray diffraction (XRD) analyses of natural zeolite having a particle size of -1 + 0.3 mm, confirmed that the clinoptilolite (Al1.6H30Ca2.06O4756Si164) is a dominant mineral of mine tuff. A dynamic method was used for the experiments in order to simulate real conditions in an industrially relevant environment. The effect of the flow rate of AMD, type of columns and zeolite classes on the degree of adsorption of the heavy metals from AMD was investigated. The results of chemical analyses of treated AMD samples at a flow rate of 0.0033 dm(3)s(-1) which corresponds to the spontaneous outflow from the real accumulation indicate that concentrations of heavy metals are not decreased below that allowed for defined recipient class, except for copper. Also, these results show that the heavy metal ion removal serie for the industrially relevant environment can be given as: Cu  gt  Zn  gt  Cd  gt  Mn  gt  Ni.",
publisher = "Japan Inst Metals & Materials, Sendai",
journal = "Materials Transactions",
title = "The Application of a Natural Zeolite for Acid Mine Drainage Purification",
pages = "2057-2053",
number = "12",
volume = "56",
doi = "10.2320/matertrans.M2015292"
}
Marković, R., Gardić, V., Obradović, L., Đorđievski, S., Stevanović, Z., Stevanović, J.,& Gvozdenović, M.. (2015). The Application of a Natural Zeolite for Acid Mine Drainage Purification. in Materials Transactions
Japan Inst Metals & Materials, Sendai., 56(12), 2053-2057.
https://doi.org/10.2320/matertrans.M2015292
Marković R, Gardić V, Obradović L, Đorđievski S, Stevanović Z, Stevanović J, Gvozdenović M. The Application of a Natural Zeolite for Acid Mine Drainage Purification. in Materials Transactions. 2015;56(12):2053-2057.
doi:10.2320/matertrans.M2015292 .
Marković, Radmila, Gardić, Vojka, Obradović, Ljubiša, Đorđievski, Stefan, Stevanović, Zoran, Stevanović, Jasmina, Gvozdenović, Milica, "The Application of a Natural Zeolite for Acid Mine Drainage Purification" in Materials Transactions, 56, no. 12 (2015):2053-2057,
https://doi.org/10.2320/matertrans.M2015292 . .
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Effect of tracers molecular weight on the release process from alginate microbeads

Ilić, Jovana M.; Grujić, Aleksandar; Stijepović, Mirko; Stajić-Trošić, Jasna; Bugarski, Branko

(Savez inženjera i tehničara Srbije, Beograd, 2015)

TY  - JOUR
AU  - Ilić, Jovana M.
AU  - Grujić, Aleksandar
AU  - Stijepović, Mirko
AU  - Stajić-Trošić, Jasna
AU  - Bugarski, Branko
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2906
AB  - The aim of this paper is to obtain microbeads of natural polymers such as alginate and chitosan. These microbeads were used as potential carriers for the active ingredients so that in this study the diffusion of various substances from them is analyzed. Alginate microbeads were obtained by electrostatic droplet method. In the resulting microbeads was performed absorption of three tracer indicators with different molecular weight (acridine orange, blue dextran, methylene blue). The goal of the experiment is to monitor indicators release kinetics from microbeads. Based on these measurements the layoffs curve should give an answer on the impact of the molecular size of the three indicators on the diffusion rate of microbeads. In order to achieve the slow release of indicators alginate microbeads were coated with chitosan. Chitosan has an impact on reducing the porosity of gel, which further led to lower release tracer indicators of microbeads. Comparative analysis of the obtained layoffs curves answers about the impact on the process of obtaining micro diffusion rate indicator.
AB  - U ovom radu je prikazan proces sinteze mikročestica od prirodnih polimera, alginata i hitozana, kao i neka njihova svojstva. Osnovna primena ovih mikročestica je da se koriste kao potencijalni nosači za aktivne supstance. U tom smislu je ispitivana i difuzija različitih supstanci iz njih. Na alginatne mikročestice dobijene metodom elektrostatičke ekstruzije vršena je apsorpcija tri trejserska indikatora sa različitim molekulskim masama: akridin oranž, plavi dekstran i metilensko plavo. Praćenjem kinetike otpuštanja indikatora iz mikročestica konstruisane su krive otpuštanja koje daju informaciju o uticaju veličine molekula svakog od indikatora na brzinu difuzije iz mikročestica. Da bi se postiglo što sporije otpuštanje indikatora alginatne mikročestice su oblagane hitozanom. Hitozan ima uticaj na smanjenje poroznosti gela, što dovodi do sporijeg otpuštanja trejsersikh indikatora iz mikročestica. Uporedna analiza dobijenih krivih otpuštanja daje odgovor o uticaju postupka dobijanja mikročestica na brzinu difuzije indikatora.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Effect of tracers molecular weight on the release process from alginate microbeads
T1  - Uticaj molekulske mase trejserskih indikatora na kontrolisano otpuštanje iz alginatnih mikročestica
EP  - 405
IS  - 3
SP  - 401
VL  - 70
DO  - 10.5937/tehnika1503401I
ER  - 
@article{
author = "Ilić, Jovana M. and Grujić, Aleksandar and Stijepović, Mirko and Stajić-Trošić, Jasna and Bugarski, Branko",
year = "2015",
abstract = "The aim of this paper is to obtain microbeads of natural polymers such as alginate and chitosan. These microbeads were used as potential carriers for the active ingredients so that in this study the diffusion of various substances from them is analyzed. Alginate microbeads were obtained by electrostatic droplet method. In the resulting microbeads was performed absorption of three tracer indicators with different molecular weight (acridine orange, blue dextran, methylene blue). The goal of the experiment is to monitor indicators release kinetics from microbeads. Based on these measurements the layoffs curve should give an answer on the impact of the molecular size of the three indicators on the diffusion rate of microbeads. In order to achieve the slow release of indicators alginate microbeads were coated with chitosan. Chitosan has an impact on reducing the porosity of gel, which further led to lower release tracer indicators of microbeads. Comparative analysis of the obtained layoffs curves answers about the impact on the process of obtaining micro diffusion rate indicator., U ovom radu je prikazan proces sinteze mikročestica od prirodnih polimera, alginata i hitozana, kao i neka njihova svojstva. Osnovna primena ovih mikročestica je da se koriste kao potencijalni nosači za aktivne supstance. U tom smislu je ispitivana i difuzija različitih supstanci iz njih. Na alginatne mikročestice dobijene metodom elektrostatičke ekstruzije vršena je apsorpcija tri trejserska indikatora sa različitim molekulskim masama: akridin oranž, plavi dekstran i metilensko plavo. Praćenjem kinetike otpuštanja indikatora iz mikročestica konstruisane su krive otpuštanja koje daju informaciju o uticaju veličine molekula svakog od indikatora na brzinu difuzije iz mikročestica. Da bi se postiglo što sporije otpuštanje indikatora alginatne mikročestice su oblagane hitozanom. Hitozan ima uticaj na smanjenje poroznosti gela, što dovodi do sporijeg otpuštanja trejsersikh indikatora iz mikročestica. Uporedna analiza dobijenih krivih otpuštanja daje odgovor o uticaju postupka dobijanja mikročestica na brzinu difuzije indikatora.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Effect of tracers molecular weight on the release process from alginate microbeads, Uticaj molekulske mase trejserskih indikatora na kontrolisano otpuštanje iz alginatnih mikročestica",
pages = "405-401",
number = "3",
volume = "70",
doi = "10.5937/tehnika1503401I"
}
Ilić, J. M., Grujić, A., Stijepović, M., Stajić-Trošić, J.,& Bugarski, B.. (2015). Effect of tracers molecular weight on the release process from alginate microbeads. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 70(3), 401-405.
https://doi.org/10.5937/tehnika1503401I
Ilić JM, Grujić A, Stijepović M, Stajić-Trošić J, Bugarski B. Effect of tracers molecular weight on the release process from alginate microbeads. in Tehnika. 2015;70(3):401-405.
doi:10.5937/tehnika1503401I .
Ilić, Jovana M., Grujić, Aleksandar, Stijepović, Mirko, Stajić-Trošić, Jasna, Bugarski, Branko, "Effect of tracers molecular weight on the release process from alginate microbeads" in Tehnika, 70, no. 3 (2015):401-405,
https://doi.org/10.5937/tehnika1503401I . .

Treatment of waste sulfuric acid copper electrolyte

Marković, Radmila; Stevanović, Jasmina; Gvozdenović, Milica; Jakšić, Jelena M.

(Institut za rudarstvo i metalurgiju, Bor, 2014)

TY  - JOUR
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
AU  - Jakšić, Jelena M.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2614
AB  - The aim of this paper was to investigate the possibility of using the copper anodes with high nickel content for electrolytic treatment of waste sulfuric acid copper electrolyte. Nickel content in each anode was about 10 wt. %. Lead, antimony, and tin content was within the limits ranged from 0.1 to 1.4 wt. %. Copper mass content in anodes was in the range from 86 to 90 wt. %, and was mathematical deference to 100 wt. %. Electrolytic processing was done in galvanostatic conditions at the current density of 250 A/m2, electrolyte temperature of 63 ± 2 ° C, duration of each test of 72 h. The mass of each anode was about 7 kg. The waste sulfuric acid electrolyte with concentration of 30 g dm3 Cu2+ ions and 225 g/dm3 SO4 2- ions was used as the working solution. Changing the anode mass, changing the content of copper and nickel ions in the working solution and the mass of obtained cathode deposit were the subject of discussion in this paper. The difference in weight of anode at the beginning and end of the process confirmed that the anodes are dissolved during the process. A significant reduction of Cu2+ ions concentration was achieved as well as an increase in concentration of Ni2+ ions in the working solution. Mass of cathode deposit, obtained during electrolytic refining of anode with the smallest impurity content, was greater than the mass of dissolved correspondent anode for about 2%. Mass of cathode deposit, obtained by refining the anode with the content of Pb + Sn + Sb from 1.5 to 3.5 wt. %, was less than the mass of dissolved correspondent anode by about 2 %.
AB  - Cilj ovog rada bio je da se ispita mogućnost korišćenja bakarnih anoda sa visokim sadržajem nikla za elektrolitičku preradu otpadnog sumporno-kiselog elektrolita bakra. Sadržaj nikla u anodama bio je oko 10 mas. %, a sadržaj olova, antimona i kalaja kretao se u granicama od 0.1 do 1.4 mas. %. Maseno učešće bakra u anodama bilo je u opsegu od 86 do 90 mas. % i predstavljalo je razliku do 100 mas. %. Elektrolitička prerada je rađena u uslovima galvanostatskog režima rada, pri gustini struje od 250 A/m2, temperaturi elektrolita od 63±2oC, u trajanju od 72 h. Masa svake anode bila je oko 7 kg. Otpadni sumporno-kiseli elektrolit sa sadržajem Cu2+ jona od 30 g/dm3 i sadržajem SO4 2- jona od 225 g/dm3 korišćen je kao radni rastvor. Promena mase anoda, promena sadržaja jona bakra i nikla u radnom rastvoru i masa dobijenog katodnog taloga bili su predmet diskusije u ovom radu. Razlika u masi anoda na početku i kraju procesa potvrdila je da su se anode tokom procesa rastvarale. Postignuto je značajno smanjenje koncentracije Cu2+ jona i povećanje koncentracije Ni2+ jona u radnom rastvoru. Masa katodnog taloga dobijenog elektrilitičkom rafinacijom anode sa najmanjim sadržajem nečistoća bila je veća od mase rastvorene korespodentne anode za oko 2 % dok su mase katodnih taloga dobijenih rafinacijom anoda sa sadržajem Pb+Sn+Sb od 1.5 - 3.5 mas. % bile manje od masa rastvorenih anoda za oko 2 %.
PB  - Institut za rudarstvo i metalurgiju, Bor
T2  - Mining and Metallurgy Engineering Bor
T1  - Treatment of waste sulfuric acid copper electrolyte
T1  - Tretman otpadnog sumporno-kiselog elektrolita bakra
EP  - 152
IS  - 3
SP  - 141
DO  - 10.5937/mmeb1403141m
ER  - 
@article{
author = "Marković, Radmila and Stevanović, Jasmina and Gvozdenović, Milica and Jakšić, Jelena M.",
year = "2014",
abstract = "The aim of this paper was to investigate the possibility of using the copper anodes with high nickel content for electrolytic treatment of waste sulfuric acid copper electrolyte. Nickel content in each anode was about 10 wt. %. Lead, antimony, and tin content was within the limits ranged from 0.1 to 1.4 wt. %. Copper mass content in anodes was in the range from 86 to 90 wt. %, and was mathematical deference to 100 wt. %. Electrolytic processing was done in galvanostatic conditions at the current density of 250 A/m2, electrolyte temperature of 63 ± 2 ° C, duration of each test of 72 h. The mass of each anode was about 7 kg. The waste sulfuric acid electrolyte with concentration of 30 g dm3 Cu2+ ions and 225 g/dm3 SO4 2- ions was used as the working solution. Changing the anode mass, changing the content of copper and nickel ions in the working solution and the mass of obtained cathode deposit were the subject of discussion in this paper. The difference in weight of anode at the beginning and end of the process confirmed that the anodes are dissolved during the process. A significant reduction of Cu2+ ions concentration was achieved as well as an increase in concentration of Ni2+ ions in the working solution. Mass of cathode deposit, obtained during electrolytic refining of anode with the smallest impurity content, was greater than the mass of dissolved correspondent anode for about 2%. Mass of cathode deposit, obtained by refining the anode with the content of Pb + Sn + Sb from 1.5 to 3.5 wt. %, was less than the mass of dissolved correspondent anode by about 2 %., Cilj ovog rada bio je da se ispita mogućnost korišćenja bakarnih anoda sa visokim sadržajem nikla za elektrolitičku preradu otpadnog sumporno-kiselog elektrolita bakra. Sadržaj nikla u anodama bio je oko 10 mas. %, a sadržaj olova, antimona i kalaja kretao se u granicama od 0.1 do 1.4 mas. %. Maseno učešće bakra u anodama bilo je u opsegu od 86 do 90 mas. % i predstavljalo je razliku do 100 mas. %. Elektrolitička prerada je rađena u uslovima galvanostatskog režima rada, pri gustini struje od 250 A/m2, temperaturi elektrolita od 63±2oC, u trajanju od 72 h. Masa svake anode bila je oko 7 kg. Otpadni sumporno-kiseli elektrolit sa sadržajem Cu2+ jona od 30 g/dm3 i sadržajem SO4 2- jona od 225 g/dm3 korišćen je kao radni rastvor. Promena mase anoda, promena sadržaja jona bakra i nikla u radnom rastvoru i masa dobijenog katodnog taloga bili su predmet diskusije u ovom radu. Razlika u masi anoda na početku i kraju procesa potvrdila je da su se anode tokom procesa rastvarale. Postignuto je značajno smanjenje koncentracije Cu2+ jona i povećanje koncentracije Ni2+ jona u radnom rastvoru. Masa katodnog taloga dobijenog elektrilitičkom rafinacijom anode sa najmanjim sadržajem nečistoća bila je veća od mase rastvorene korespodentne anode za oko 2 % dok su mase katodnih taloga dobijenih rafinacijom anoda sa sadržajem Pb+Sn+Sb od 1.5 - 3.5 mas. % bile manje od masa rastvorenih anoda za oko 2 %.",
publisher = "Institut za rudarstvo i metalurgiju, Bor",
journal = "Mining and Metallurgy Engineering Bor",
title = "Treatment of waste sulfuric acid copper electrolyte, Tretman otpadnog sumporno-kiselog elektrolita bakra",
pages = "152-141",
number = "3",
doi = "10.5937/mmeb1403141m"
}
Marković, R., Stevanović, J., Gvozdenović, M.,& Jakšić, J. M.. (2014). Treatment of waste sulfuric acid copper electrolyte. in Mining and Metallurgy Engineering Bor
Institut za rudarstvo i metalurgiju, Bor.(3), 141-152.
https://doi.org/10.5937/mmeb1403141m
Marković R, Stevanović J, Gvozdenović M, Jakšić JM. Treatment of waste sulfuric acid copper electrolyte. in Mining and Metallurgy Engineering Bor. 2014;(3):141-152.
doi:10.5937/mmeb1403141m .
Marković, Radmila, Stevanović, Jasmina, Gvozdenović, Milica, Jakšić, Jelena M., "Treatment of waste sulfuric acid copper electrolyte" in Mining and Metallurgy Engineering Bor, no. 3 (2014):141-152,
https://doi.org/10.5937/mmeb1403141m . .

Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes

Marković, Radmila; Stevanović, Jasmina; Gvozdenović, Milica; Jugović, Branimir; Grujić, Aleksandar; Nedeljković, Dragutin; Stajić-Trošić, Jasna

(Electrochemical Science Group, Beograd, 2013)

TY  - JOUR
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Grujić, Aleksandar
AU  - Nedeljković, Dragutin
AU  - Stajić-Trošić, Jasna
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2281
AB  - The use of copper anodes with non standard content of impurities for the treatment of waste, sulphur acid solutions that came as a result of the industrial process of electrolytic copper refining was investigated. Those solutions contain the high content of copper, nickel and arsine, and because of that, the copper anodes with high content of Ni, Pb, Sn and Sb were prepared. Examination the effect of high impurities content as well as the influence of the solution temperature on the anodes behaviour during the electrolytic process under the conditions that are the same as the industrial was the aim of this work. Obtained results clearly indicate that tested anodes could be used for the refined during the electrorefining process. Dissolution of copper anodes was not stoppage after the first appearance of the passivation region for A1 and A2 anodes while appearance of passivation for A3 anode, for test duration of 72 h, was not registered. The start time of the first passivation appearance is shorter in the case of the anode with high content of all impurities, anode A1. The first passivation occurrence was detected on higher temperature after about 29 h from the test starts. The change of chemical composition of electrolyte was monitored during electrolysis. Concentration of nickel in the working electrolyte at the end of process is increased and it corresponds to the Ni content in anodes. The copper and arsenic concentrations are decreased during the process. Arsenic passes into the anode slime, while the copper is deposited on the cathode and also passed in the slime. After the process is finished, obtained solution could be used for the nickel recover using the electrochemically or chemically methods.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes
EP  - 7370
IS  - 5
SP  - 7357
VL  - 8
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2281
ER  - 
@article{
author = "Marković, Radmila and Stevanović, Jasmina and Gvozdenović, Milica and Jugović, Branimir and Grujić, Aleksandar and Nedeljković, Dragutin and Stajić-Trošić, Jasna",
year = "2013",
abstract = "The use of copper anodes with non standard content of impurities for the treatment of waste, sulphur acid solutions that came as a result of the industrial process of electrolytic copper refining was investigated. Those solutions contain the high content of copper, nickel and arsine, and because of that, the copper anodes with high content of Ni, Pb, Sn and Sb were prepared. Examination the effect of high impurities content as well as the influence of the solution temperature on the anodes behaviour during the electrolytic process under the conditions that are the same as the industrial was the aim of this work. Obtained results clearly indicate that tested anodes could be used for the refined during the electrorefining process. Dissolution of copper anodes was not stoppage after the first appearance of the passivation region for A1 and A2 anodes while appearance of passivation for A3 anode, for test duration of 72 h, was not registered. The start time of the first passivation appearance is shorter in the case of the anode with high content of all impurities, anode A1. The first passivation occurrence was detected on higher temperature after about 29 h from the test starts. The change of chemical composition of electrolyte was monitored during electrolysis. Concentration of nickel in the working electrolyte at the end of process is increased and it corresponds to the Ni content in anodes. The copper and arsenic concentrations are decreased during the process. Arsenic passes into the anode slime, while the copper is deposited on the cathode and also passed in the slime. After the process is finished, obtained solution could be used for the nickel recover using the electrochemically or chemically methods.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes",
pages = "7370-7357",
number = "5",
volume = "8",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2281"
}
Marković, R., Stevanović, J., Gvozdenović, M., Jugović, B., Grujić, A., Nedeljković, D.,& Stajić-Trošić, J.. (2013). Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 8(5), 7357-7370.
https://hdl.handle.net/21.15107/rcub_technorep_2281
Marković R, Stevanović J, Gvozdenović M, Jugović B, Grujić A, Nedeljković D, Stajić-Trošić J. Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes. in International Journal of Electrochemical Science. 2013;8(5):7357-7370.
https://hdl.handle.net/21.15107/rcub_technorep_2281 .
Marković, Radmila, Stevanović, Jasmina, Gvozdenović, Milica, Jugović, Branimir, Grujić, Aleksandar, Nedeljković, Dragutin, Stajić-Trošić, Jasna, "Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes" in International Journal of Electrochemical Science, 8, no. 5 (2013):7357-7370,
https://hdl.handle.net/21.15107/rcub_technorep_2281 .
2
3

The effect of Ni content on passivation of copper anodes with non-standard chemical composition

Marković, Radmila; Stevanović, Jasmina; Jugović, Branimir; Gvozdenović, Milica; Avramović, Ljiljana

(Tatranské Matliare : Slovak Society of Chemical Engineering, 2012)

TY  - CONF
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Jugović, Branimir
AU  - Gvozdenović, Milica
AU  - Avramović, Ljiljana
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2003
AB  - In this paper are presented the results of the first appearance of full pasivation during the treatment of the waste sulphuric-acid solution generated in the conventional copper electrorefining process. The copper anodes with non-standard content of nickel, lead, tin and antimony were used as material for electrochemical refinement. Nickel content in anodes was approximately 5 or 7.5 wt. %, and the summary content of lead, tin and antimony was up to 3 wt. %. Copper content was a difference of up to 100 wt. %. Chemical analysis of the waste solution from copper refining process which was used as electrolyte has shown that the Ni and As ions are present in concentrations of Ni - 20.5 g dm-3 and As – 4 g dm-3. The experiments were carried out in galvanostatic mode at current density of 250 A m-2, at electrolyte temperatures of T1 = 63 ± 2 0C and T2 = 73 ± 2 0C for a process duration of 72 h. The data obtained on the basis of the measured values of cell voltage for each anode where the nickel content was approximately 5 wt. % (anodes marked as A1-A4) and nickel content of approximately 7.5 wt.% (anodes marked as A5-A8) shown that using the anodes with lower nickel content (A2 and A3) leads to the appearance of full pasivation phenomenon at both electrolyte temperature. The apperance of full passivation for anodes with higher nickel content (A5-A7) is registered only at lower electrolyte temperature.
PB  - Tatranské Matliare : Slovak Society of Chemical Engineering
C3  - Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
T1  - The effect of Ni content on passivation of copper anodes with non-standard chemical composition
EP  - 1466
SP  - 1462
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2003
ER  - 
@conference{
author = "Marković, Radmila and Stevanović, Jasmina and Jugović, Branimir and Gvozdenović, Milica and Avramović, Ljiljana",
year = "2012",
abstract = "In this paper are presented the results of the first appearance of full pasivation during the treatment of the waste sulphuric-acid solution generated in the conventional copper electrorefining process. The copper anodes with non-standard content of nickel, lead, tin and antimony were used as material for electrochemical refinement. Nickel content in anodes was approximately 5 or 7.5 wt. %, and the summary content of lead, tin and antimony was up to 3 wt. %. Copper content was a difference of up to 100 wt. %. Chemical analysis of the waste solution from copper refining process which was used as electrolyte has shown that the Ni and As ions are present in concentrations of Ni - 20.5 g dm-3 and As – 4 g dm-3. The experiments were carried out in galvanostatic mode at current density of 250 A m-2, at electrolyte temperatures of T1 = 63 ± 2 0C and T2 = 73 ± 2 0C for a process duration of 72 h. The data obtained on the basis of the measured values of cell voltage for each anode where the nickel content was approximately 5 wt. % (anodes marked as A1-A4) and nickel content of approximately 7.5 wt.% (anodes marked as A5-A8) shown that using the anodes with lower nickel content (A2 and A3) leads to the appearance of full pasivation phenomenon at both electrolyte temperature. The apperance of full passivation for anodes with higher nickel content (A5-A7) is registered only at lower electrolyte temperature.",
publisher = "Tatranské Matliare : Slovak Society of Chemical Engineering",
journal = "Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering",
title = "The effect of Ni content on passivation of copper anodes with non-standard chemical composition",
pages = "1466-1462",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2003"
}
Marković, R., Stevanović, J., Jugović, B., Gvozdenović, M.,& Avramović, L.. (2012). The effect of Ni content on passivation of copper anodes with non-standard chemical composition. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
Tatranské Matliare : Slovak Society of Chemical Engineering., 1462-1466.
https://hdl.handle.net/21.15107/rcub_technorep_2003
Marković R, Stevanović J, Jugović B, Gvozdenović M, Avramović L. The effect of Ni content on passivation of copper anodes with non-standard chemical composition. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering. 2012;:1462-1466.
https://hdl.handle.net/21.15107/rcub_technorep_2003 .
Marković, Radmila, Stevanović, Jasmina, Jugović, Branimir, Gvozdenović, Milica, Avramović, Ljiljana, "The effect of Ni content on passivation of copper anodes with non-standard chemical composition" in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering (2012):1462-1466,
https://hdl.handle.net/21.15107/rcub_technorep_2003 .

Decopperization process of waste solutions from conventional copper electrolysis

Marković, Radmila; Stevanović, Jasmina; Gvozdenović, Milica; Jugović, Branimir; Jonović, Radojka

(Tatranské Matliare : Slovak Society of Chemical Engineering, 2012)

TY  - CONF
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Jonović, Radojka
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1997
AB  - This paper is adresses on treatment of sulphuric acid waste solutions obtained during the conventional copper metallurgical activities. Mother liquor is a part of this solutions and it is generated during the regeneration process of copper bleed solution. Copper, nickel and sulphuric acid are the main components and the other registered impurities are: As, Se, Fe, Sb, Zn, Bi, Pb, Cl ions. Aim to copper removing from the mother liquor, the decopperization process on the industrial scale equipment, is investigated. Investigation was done using the rectangular insoluble lead anodes alloyed with 6 wt.% of antimony at current value of 13 000 A, identical to the current in a commercial copper refinery plant. A few parameters as so as: current, cell voltage, electrolyte temperature, electrolyte flow rate, level of electrolyte, were monitored during the test. Comparing the values of copper content in the solution before and after the decopperization of copper, it was found that it decreased of about 80 wt. % of the initial value. Chemical characterization of the sludge obtained on cathode has shown that it is a material with copper content of about 90 wt. %.
PB  - Tatranské Matliare : Slovak Society of Chemical Engineering
C3  - Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
T1  - Decopperization process of waste solutions from conventional copper electrolysis
EP  - 297
SP  - 292
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1997
ER  - 
@conference{
author = "Marković, Radmila and Stevanović, Jasmina and Gvozdenović, Milica and Jugović, Branimir and Jonović, Radojka",
year = "2012",
abstract = "This paper is adresses on treatment of sulphuric acid waste solutions obtained during the conventional copper metallurgical activities. Mother liquor is a part of this solutions and it is generated during the regeneration process of copper bleed solution. Copper, nickel and sulphuric acid are the main components and the other registered impurities are: As, Se, Fe, Sb, Zn, Bi, Pb, Cl ions. Aim to copper removing from the mother liquor, the decopperization process on the industrial scale equipment, is investigated. Investigation was done using the rectangular insoluble lead anodes alloyed with 6 wt.% of antimony at current value of 13 000 A, identical to the current in a commercial copper refinery plant. A few parameters as so as: current, cell voltage, electrolyte temperature, electrolyte flow rate, level of electrolyte, were monitored during the test. Comparing the values of copper content in the solution before and after the decopperization of copper, it was found that it decreased of about 80 wt. % of the initial value. Chemical characterization of the sludge obtained on cathode has shown that it is a material with copper content of about 90 wt. %.",
publisher = "Tatranské Matliare : Slovak Society of Chemical Engineering",
journal = "Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering",
title = "Decopperization process of waste solutions from conventional copper electrolysis",
pages = "297-292",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1997"
}
Marković, R., Stevanović, J., Gvozdenović, M., Jugović, B.,& Jonović, R.. (2012). Decopperization process of waste solutions from conventional copper electrolysis. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
Tatranské Matliare : Slovak Society of Chemical Engineering., 292-297.
https://hdl.handle.net/21.15107/rcub_technorep_1997
Marković R, Stevanović J, Gvozdenović M, Jugović B, Jonović R. Decopperization process of waste solutions from conventional copper electrolysis. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering. 2012;:292-297.
https://hdl.handle.net/21.15107/rcub_technorep_1997 .
Marković, Radmila, Stevanović, Jasmina, Gvozdenović, Milica, Jugović, Branimir, Jonović, Radojka, "Decopperization process of waste solutions from conventional copper electrolysis" in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering (2012):292-297,
https://hdl.handle.net/21.15107/rcub_technorep_1997 .

Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment

Marković, Radmila; Stevanović, Jasmina; Avramović, Ljiljana; Nedeljković, Dragutin; Jugović, Branimir; Stajić-Trošić, Jasna; Gvozdenović, Milica

(Springer, New York, 2012)

TY  - JOUR
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Avramović, Ljiljana
AU  - Nedeljković, Dragutin
AU  - Jugović, Branimir
AU  - Stajić-Trošić, Jasna
AU  - Gvozdenović, Milica
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2126
AB  - The aim of this study is synthesis of copper-sulfate pentahydrate from the waste sulfuric acid solution-mother liquor generated during the regeneration process of copper bleed solution. Copper is removed from the mother liquor solution in the process of the electrolytic treatment using the insoluble lead anodes alloyed with 6 mass pct of antimony on the industrial-scale equipment. As the result of the decopperization process, copper is removed in the form of the cathode sludge and is precipitated at the bottom of the electrolytic cell. By this procedure, the content of copper could be reduced to the 20 mass pct of the initial value. Chemical characterization of the sludge has shown that it contains about 90 mass pct of copper. During the decopperization process, the very strong poison, arsine, can be formed, and the process is in that case terminated. The copper leaching degree of 82 mass pct is obtained using H2SO4 aqueous solution with the oxygen addition during the cathode sludge chemical treatment at 80 A degrees C +/- A 5 A degrees C. Obtained copper salt satisfies the requirements of the Serbian Standard for Pesticide, SRPS H.P1. 058. Therefore, the treatment of waste sulfuric acid solutions is of great economic and environmental interest. DOI: 10.1007/s11663-012-9721-8
PB  - Springer, New York
T2  - Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science
T1  - Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment
EP  - 1392
IS  - 6
SP  - 1388
VL  - 43
DO  - 10.1007/s11663-012-9721-8
ER  - 
@article{
author = "Marković, Radmila and Stevanović, Jasmina and Avramović, Ljiljana and Nedeljković, Dragutin and Jugović, Branimir and Stajić-Trošić, Jasna and Gvozdenović, Milica",
year = "2012",
abstract = "The aim of this study is synthesis of copper-sulfate pentahydrate from the waste sulfuric acid solution-mother liquor generated during the regeneration process of copper bleed solution. Copper is removed from the mother liquor solution in the process of the electrolytic treatment using the insoluble lead anodes alloyed with 6 mass pct of antimony on the industrial-scale equipment. As the result of the decopperization process, copper is removed in the form of the cathode sludge and is precipitated at the bottom of the electrolytic cell. By this procedure, the content of copper could be reduced to the 20 mass pct of the initial value. Chemical characterization of the sludge has shown that it contains about 90 mass pct of copper. During the decopperization process, the very strong poison, arsine, can be formed, and the process is in that case terminated. The copper leaching degree of 82 mass pct is obtained using H2SO4 aqueous solution with the oxygen addition during the cathode sludge chemical treatment at 80 A degrees C +/- A 5 A degrees C. Obtained copper salt satisfies the requirements of the Serbian Standard for Pesticide, SRPS H.P1. 058. Therefore, the treatment of waste sulfuric acid solutions is of great economic and environmental interest. DOI: 10.1007/s11663-012-9721-8",
publisher = "Springer, New York",
journal = "Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science",
title = "Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment",
pages = "1392-1388",
number = "6",
volume = "43",
doi = "10.1007/s11663-012-9721-8"
}
Marković, R., Stevanović, J., Avramović, L., Nedeljković, D., Jugović, B., Stajić-Trošić, J.,& Gvozdenović, M.. (2012). Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment. in Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science
Springer, New York., 43(6), 1388-1392.
https://doi.org/10.1007/s11663-012-9721-8
Marković R, Stevanović J, Avramović L, Nedeljković D, Jugović B, Stajić-Trošić J, Gvozdenović M. Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment. in Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science. 2012;43(6):1388-1392.
doi:10.1007/s11663-012-9721-8 .
Marković, Radmila, Stevanović, Jasmina, Avramović, Ljiljana, Nedeljković, Dragutin, Jugović, Branimir, Stajić-Trošić, Jasna, Gvozdenović, Milica, "Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment" in Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science, 43, no. 6 (2012):1388-1392,
https://doi.org/10.1007/s11663-012-9721-8 . .
4
3
4

Analyzing the corrosion characteristics of anodes used for the sulphur acidic waste water treatment

Marković, Radmila; Jugović, Branimir; Gvozdenović, Milica; Stevanović, Jasmina; Stevanović, Z.; Bugarin, Mile

(Tatranské Matliare : Slovak Society of Chemical Engineering, 2011)

TY  - CONF
AU  - Marković, Radmila
AU  - Jugović, Branimir
AU  - Gvozdenović, Milica
AU  - Stevanović, Jasmina
AU  - Stevanović, Z.
AU  - Bugarin, Mile
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1774
AB  - This paper addresses on investigation the possibility of electrolytic treatment the sulphur acidic waste solution, obtained in the conventional electrolytic copper refining process. The copper anodes with non-standard nickel, lead, tin and antimony content were specially prepared for the refining process. Nickel content of all anodes was approximately 7.5 mass %, and the content of lead, tin and antimony was varied. It was observed, that anodes with O2 content lower than 200 ppm, were not passivated. Results, obtained using the standard electrochemical techniques, have indicated that the anodes with non-standard chemical composition could be used under the same conditions as well as in the conventional copper refining process.
PB  - Tatranské Matliare : Slovak Society of Chemical Engineering
C3  - Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering
T1  - Analyzing the corrosion characteristics of anodes used for the sulphur acidic waste water treatment
EP  - 975
SP  - 972
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1774
ER  - 
@conference{
author = "Marković, Radmila and Jugović, Branimir and Gvozdenović, Milica and Stevanović, Jasmina and Stevanović, Z. and Bugarin, Mile",
year = "2011",
abstract = "This paper addresses on investigation the possibility of electrolytic treatment the sulphur acidic waste solution, obtained in the conventional electrolytic copper refining process. The copper anodes with non-standard nickel, lead, tin and antimony content were specially prepared for the refining process. Nickel content of all anodes was approximately 7.5 mass %, and the content of lead, tin and antimony was varied. It was observed, that anodes with O2 content lower than 200 ppm, were not passivated. Results, obtained using the standard electrochemical techniques, have indicated that the anodes with non-standard chemical composition could be used under the same conditions as well as in the conventional copper refining process.",
publisher = "Tatranské Matliare : Slovak Society of Chemical Engineering",
journal = "Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering",
title = "Analyzing the corrosion characteristics of anodes used for the sulphur acidic waste water treatment",
pages = "975-972",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1774"
}
Marković, R., Jugović, B., Gvozdenović, M., Stevanović, J., Stevanović, Z.,& Bugarin, M.. (2011). Analyzing the corrosion characteristics of anodes used for the sulphur acidic waste water treatment. in Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering
Tatranské Matliare : Slovak Society of Chemical Engineering., 972-975.
https://hdl.handle.net/21.15107/rcub_technorep_1774
Marković R, Jugović B, Gvozdenović M, Stevanović J, Stevanović Z, Bugarin M. Analyzing the corrosion characteristics of anodes used for the sulphur acidic waste water treatment. in Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering. 2011;:972-975.
https://hdl.handle.net/21.15107/rcub_technorep_1774 .
Marković, Radmila, Jugović, Branimir, Gvozdenović, Milica, Stevanović, Jasmina, Stevanović, Z., Bugarin, Mile, "Analyzing the corrosion characteristics of anodes used for the sulphur acidic waste water treatment" in Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering (2011):972-975,
https://hdl.handle.net/21.15107/rcub_technorep_1774 .

The use of anodic linear sweep voltammetery analysis (ALSV) for characterization the copper anodes used for sulphur acidic waste solution treatment

Marković, Radmila; Jugović, Branimir; Gvozdenović, Milica; Stevanović, Jasmina; Stevanović, Z.; Bugarin, Mile

(Tatranské Matliare : Slovak Society of Chemical Engineering, 2011)

TY  - CONF
AU  - Marković, Radmila
AU  - Jugović, Branimir
AU  - Gvozdenović, Milica
AU  - Stevanović, Jasmina
AU  - Stevanović, Z.
AU  - Bugarin, Mile
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1765
AB  - This paper addresses on investigation the possibility of electrolytic treatment the sulphur acidic waste solution, obtained in the conventional electrolytic copper refining process. The copper anodes with non-standard nickel, lead, tin and antimony content were specially prepared for the refining process. Nickel content of all anodes was approximately 7.5 mass %, and the content of lead, tin and antimony was varied. Results, obtained using the standard electrochemical techniques, have indicated that the anodes could be used under the same conditions as well as in the conventional copper refining process.
PB  - Tatranské Matliare : Slovak Society of Chemical Engineering
C3  - Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering
T1  - The use of anodic linear sweep voltammetery analysis (ALSV) for characterization the copper anodes used for sulphur acidic waste solution treatment
EP  - 971
SP  - 968
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1765
ER  - 
@conference{
author = "Marković, Radmila and Jugović, Branimir and Gvozdenović, Milica and Stevanović, Jasmina and Stevanović, Z. and Bugarin, Mile",
year = "2011",
abstract = "This paper addresses on investigation the possibility of electrolytic treatment the sulphur acidic waste solution, obtained in the conventional electrolytic copper refining process. The copper anodes with non-standard nickel, lead, tin and antimony content were specially prepared for the refining process. Nickel content of all anodes was approximately 7.5 mass %, and the content of lead, tin and antimony was varied. Results, obtained using the standard electrochemical techniques, have indicated that the anodes could be used under the same conditions as well as in the conventional copper refining process.",
publisher = "Tatranské Matliare : Slovak Society of Chemical Engineering",
journal = "Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering",
title = "The use of anodic linear sweep voltammetery analysis (ALSV) for characterization the copper anodes used for sulphur acidic waste solution treatment",
pages = "971-968",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1765"
}
Marković, R., Jugović, B., Gvozdenović, M., Stevanović, J., Stevanović, Z.,& Bugarin, M.. (2011). The use of anodic linear sweep voltammetery analysis (ALSV) for characterization the copper anodes used for sulphur acidic waste solution treatment. in Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering
Tatranské Matliare : Slovak Society of Chemical Engineering., 968-971.
https://hdl.handle.net/21.15107/rcub_technorep_1765
Marković R, Jugović B, Gvozdenović M, Stevanović J, Stevanović Z, Bugarin M. The use of anodic linear sweep voltammetery analysis (ALSV) for characterization the copper anodes used for sulphur acidic waste solution treatment. in Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering. 2011;:968-971.
https://hdl.handle.net/21.15107/rcub_technorep_1765 .
Marković, Radmila, Jugović, Branimir, Gvozdenović, Milica, Stevanović, Jasmina, Stevanović, Z., Bugarin, Mile, "The use of anodic linear sweep voltammetery analysis (ALSV) for characterization the copper anodes used for sulphur acidic waste solution treatment" in Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering (2011):968-971,
https://hdl.handle.net/21.15107/rcub_technorep_1765 .

Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition

Stajić-Trošić, Jasna; Pešić, Olivera; Jordović, Branka; Maričić, Aleksandar; Jančić-Heinemann, Radmila; Ćosović, Vladan; Grujić, Aleksandar; Stevanović, Jasmina

(Savez inženjera metalurgije Srbije, Beograd, 2011)

TY  - JOUR
AU  - Stajić-Trošić, Jasna
AU  - Pešić, Olivera
AU  - Jordović, Branka
AU  - Maričić, Aleksandar
AU  - Jančić-Heinemann, Radmila
AU  - Ćosović, Vladan
AU  - Grujić, Aleksandar
AU  - Stevanović, Jasmina
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1829
AB  - Magnetic thin films based on iron group elements (Fe, Co, Ni) are currently used in computer's hard disk drives and in MEMS, whereas electrodeposition is a suitable method to obtain these materials. The powders of metals and alloys were obtained by electrochemical deposition at constant current density using alkaline ammonium electrolyte which consist one, two or three different elements Co, Ni and Mo. Ni and Co are deposited anomalously. The Mo element cannot be obtained electrochemically from the aqueous solutions. Electrochemical deposition of this metal is induced by codeposited iron-group metals, Ni and Co, for instance. This study investigates the influence of electrochemical parameters on composition and properties of obtained powders. Based on the obtained experimental results, it could be concluded that the particle size of deposited powders and chemical composition are influenced by the chemical composition of the electrolyte, with changing the concentration ratio of ions of metallic salts as well as current density imposed. As a consequence, the changes in magnetic properties are obvious. The structure and morphology of powders were investigated by Scanning Electron Microscopy (SEM). For demonstration of mechanism of powder deposition Image ProPlus software for SEM microphotograph analysis was used. The values of individual objects as well as formed clusters of powders were measured by this technique. The chemical composition of the powders was determinate using Energy Dispersive X-ray (EDX) analysis. XRD results suggested that obtained powders were of amorphous structure.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metalurgija
T1  - Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition
EP  - 102
IS  - 2
SP  - 95
VL  - 17
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1829
ER  - 
@article{
author = "Stajić-Trošić, Jasna and Pešić, Olivera and Jordović, Branka and Maričić, Aleksandar and Jančić-Heinemann, Radmila and Ćosović, Vladan and Grujić, Aleksandar and Stevanović, Jasmina",
year = "2011",
abstract = "Magnetic thin films based on iron group elements (Fe, Co, Ni) are currently used in computer's hard disk drives and in MEMS, whereas electrodeposition is a suitable method to obtain these materials. The powders of metals and alloys were obtained by electrochemical deposition at constant current density using alkaline ammonium electrolyte which consist one, two or three different elements Co, Ni and Mo. Ni and Co are deposited anomalously. The Mo element cannot be obtained electrochemically from the aqueous solutions. Electrochemical deposition of this metal is induced by codeposited iron-group metals, Ni and Co, for instance. This study investigates the influence of electrochemical parameters on composition and properties of obtained powders. Based on the obtained experimental results, it could be concluded that the particle size of deposited powders and chemical composition are influenced by the chemical composition of the electrolyte, with changing the concentration ratio of ions of metallic salts as well as current density imposed. As a consequence, the changes in magnetic properties are obvious. The structure and morphology of powders were investigated by Scanning Electron Microscopy (SEM). For demonstration of mechanism of powder deposition Image ProPlus software for SEM microphotograph analysis was used. The values of individual objects as well as formed clusters of powders were measured by this technique. The chemical composition of the powders was determinate using Energy Dispersive X-ray (EDX) analysis. XRD results suggested that obtained powders were of amorphous structure.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metalurgija",
title = "Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition",
pages = "102-95",
number = "2",
volume = "17",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1829"
}
Stajić-Trošić, J., Pešić, O., Jordović, B., Maričić, A., Jančić-Heinemann, R., Ćosović, V., Grujić, A.,& Stevanović, J.. (2011). Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition. in Metalurgija
Savez inženjera metalurgije Srbije, Beograd., 17(2), 95-102.
https://hdl.handle.net/21.15107/rcub_technorep_1829
Stajić-Trošić J, Pešić O, Jordović B, Maričić A, Jančić-Heinemann R, Ćosović V, Grujić A, Stevanović J. Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition. in Metalurgija. 2011;17(2):95-102.
https://hdl.handle.net/21.15107/rcub_technorep_1829 .
Stajić-Trošić, Jasna, Pešić, Olivera, Jordović, Branka, Maričić, Aleksandar, Jančić-Heinemann, Radmila, Ćosović, Vladan, Grujić, Aleksandar, Stevanović, Jasmina, "Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition" in Metalurgija, 17, no. 2 (2011):95-102,
https://hdl.handle.net/21.15107/rcub_technorep_1829 .