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Miroslav Sokić
Institute for Technology of Nuclear and Other Mineral Raw Materials, Franchet d’Esperey 86, P.O. Box 390, 11000 Belgrade, Serbia

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Journal article
Published: 31 August 2021 in Metals
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Coupled substitution of fluorapatite (FAP) crystal lattice plays an important role in the engineering of optically active nanomaterials. Uniform fluorapatite nanopowders doped with praseodymium (Pr3+) and carbonate (CO32−) ions have been successfully synthesized by precipitation method under room temperature (25 °C). The structural, morphological, chemical and optical properties of monophase material were characterized by X-ray diffraction (XRD), Fourier Transform Infrared and Far Infrared Spectroscopy (FTIR and FIR, respectively), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM/EDS), Transmission Electron Microscopy (TEM) and Photoluminescence Spectroscopy (PL). Coupled substitution of FAP crystal lattice with Pr3+ and CO32− reduces the crystallite size with a constant c/a ratio of 1.72. FTIR study showed that synthesized nanopowders were AB-type CO32− substitution, and FIR study revealed new Pr–O vibrations. TEM analysis was found that synthesized nanopowders were composed of irregular spheres in the nanometer range. The fluorescence of FAP nanoparticles was in the violet-blue region of the visible part of the spectrum. When Pr3+ was doped in a lattice, the violet-blue emission becomes sharper due to reabsorption. MCR–ALS analyses of fluorescence spectra indicated the shift of the maximum to the blue color with the increase in the concentration of Pr3+ ions. Additionally, luminescent nanopowders demonstrated significant antibacterial activity against Escherichia coli. As the obtained nanoparticles showed a good absorption of ultraviolet A light and reabsorption of blue-green luminescence, they are suitable for further development of optically active nanomaterials for light filtering. Optically active PrCFAP nanopowders with antibacterial properties may be promising additives for the development of multifunctional cosmetic and health care products.

ACS Style

Dušan V. Milojkov; Miroslav Sokić; Ana Radosavljević-Mihajlović; Vojislav Dj. Stanić; Vaso Manojlović; Dragosav R. Mutavdžić; Marija Milanović. Influence of Pr3+ and CO32− Ions Coupled Substitution on Structural, Optical and Antibacterial Properties of Fluorapatite Nanopowders Obtained by Precipitation. Metals 2021, 11, 1384 .

AMA Style

Dušan V. Milojkov, Miroslav Sokić, Ana Radosavljević-Mihajlović, Vojislav Dj. Stanić, Vaso Manojlović, Dragosav R. Mutavdžić, Marija Milanović. Influence of Pr3+ and CO32− Ions Coupled Substitution on Structural, Optical and Antibacterial Properties of Fluorapatite Nanopowders Obtained by Precipitation. Metals. 2021; 11 (9):1384.

Chicago/Turabian Style

Dušan V. Milojkov; Miroslav Sokić; Ana Radosavljević-Mihajlović; Vojislav Dj. Stanić; Vaso Manojlović; Dragosav R. Mutavdžić; Marija Milanović. 2021. "Influence of Pr3+ and CO32− Ions Coupled Substitution on Structural, Optical and Antibacterial Properties of Fluorapatite Nanopowders Obtained by Precipitation." Metals 11, no. 9: 1384.

Journal article
Published: 30 August 2021 in Metals
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The roasting of sulfide ores and concentrates is one of the most important steps in pyrometallurgical metal production from primary raw materials, due to the necessity of excess sulfur removal, present in the virgin material. Pentlandite is one of the main sources for nickel pyrometallurgical production. The knowledge of its reaction mechanism, products distribution during oxidation and reaction kinetics is important for optimizing the production process. Raw pentlandite-bearing ore from the Levack mine (Ontario, Canada) was subjected to oxidative roasting in the air atmosphere. A chemical analysis of the initial sample was conducted according to EDXRF (Energy-Dispersive X-Ray Fluorescence) and AAS (Atomic Adsorption Spectrometry) results. The characterization of the initial sample and oxidation products was conducted by an XRD (X-ray Diffraction) and SEM/EDS (Scanning Electron Microscopy with Energy Dispersive Spectrometry) analysis. Thermodynamic calculations, a phase analysis and construction of Kellogg diagrams for Ni-S-O and Fe-S-O systems at 298 K, 773 K, 923 K and 1073 K were used for proposing the theoretical reaction mechanism. A thermal analysis (TG/DTA—Thermogravimetric and Differential Thermal Analyses) was conducted in temperature range 298–1273 K, under a heating rate of 15° min−1. A kinetic analysis was conducted according to the non-isothermal method of Daniels and Borchardt, under a heating rate of 15° min−1. Calculated activation energies of 113 kJ mol−1, 146 kJ mol−1 and 356 kJ mol−1 for three oxidation stages imply that in every examined stage of the oxidation process, temperature is a dominant factor determining the reaction rate.

ACS Style

Kristina Božinović; Nada Štrbac; Aleksandra Mitovski; Miroslav Sokić; Duško Minić; Branislav Marković; Jovica Stojanović. Thermal Decomposition and Kinetics of Pentlandite-Bearing Ore Oxidation in the Air Atmosphere. Metals 2021, 11, 1364 .

AMA Style

Kristina Božinović, Nada Štrbac, Aleksandra Mitovski, Miroslav Sokić, Duško Minić, Branislav Marković, Jovica Stojanović. Thermal Decomposition and Kinetics of Pentlandite-Bearing Ore Oxidation in the Air Atmosphere. Metals. 2021; 11 (9):1364.

Chicago/Turabian Style

Kristina Božinović; Nada Štrbac; Aleksandra Mitovski; Miroslav Sokić; Duško Minić; Branislav Marković; Jovica Stojanović. 2021. "Thermal Decomposition and Kinetics of Pentlandite-Bearing Ore Oxidation in the Air Atmosphere." Metals 11, no. 9: 1364.

Journal article
Published: 28 February 2021 in Minerals
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By-products from zinc hydrometallurgy are classified as hazardous waste with strong leaching toxicities. Even though numerous research papers are dedicated to valorizing valuable metals in it, the primary management route is still disposal or partial reuse, such as the Waelz process. Presented experimental research investigates possibilities of sulfidization and further processing as a technologically sustainable route for valuable metals valorization from non-standard jarosite-PbAg sludge. The comprehensive thermodynamic analysis was done by HSC Chemistry®, through optimizing process parameters, i.e., temperature, sulfur addition, and selection of possible additives. Technological possibility of magnetic separation, flotation, and smelting of sulfidized material was also investigated; the results were below the values that allow practical application, due to the obtained texture of sulfidized jarosite, which does not allow the liberation of minerals. Smelting tests were performed on sulfidized jarosite with sulfur and without and with carbon as additive. By smelting sulfidized jarosite-PbAg sludge with added carbon in sulfidization stage at 1375 °C, obtained products were matte, slag, raw lead, and dust in which base, critical, and slag forming components were valorized. Valuable metals were concentrated in smelting products so as to enable further processing, which also could be interesting in the case of treatment of complex, polymetallic, and refractory primary materials, which represent a significant contribution to the circular economy.

ACS Style

Željko Kamberović; Nataša Gajić; Marija Korać; Sanja Jevtić; Miroslav Sokić; Jovica Stojanović. Technologically Sustainable Route for Metals Valorization from Jarosite-PbAg Sludge. Minerals 2021, 11, 255 .

AMA Style

Željko Kamberović, Nataša Gajić, Marija Korać, Sanja Jevtić, Miroslav Sokić, Jovica Stojanović. Technologically Sustainable Route for Metals Valorization from Jarosite-PbAg Sludge. Minerals. 2021; 11 (3):255.

Chicago/Turabian Style

Željko Kamberović; Nataša Gajić; Marija Korać; Sanja Jevtić; Miroslav Sokić; Jovica Stojanović. 2021. "Technologically Sustainable Route for Metals Valorization from Jarosite-PbAg Sludge." Minerals 11, no. 3: 255.

Journal article
Published: 20 December 2019 in Metals
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Flotation tailings rich in carbonate minerals from the tailings deposit of the copper mine Majdanpek (Serbia) were applied for neutralization of the water taken from the extremely acidic Lake Robule (Bor, Serbia). Tests conducted in Erlenmeyer flasks showed that after neutralization of the lake water to pH 7, over 99% of aluminum (Al), iron (Fe), and copper (Cu) precipitated, as well as 92% of Zn and 98% of Pb. In order to remove residual Mn and Ag, the water was further treated with NaOH. After treatment with NaOH, all concentrations of the metals in the lake water samples were below discharge limits for municipal wastewater according to the national legislation of the Republic of Serbia. The results of this work suggest that mining waste could be used for active neutralization of the acid mine drainage. The use of the mining waste instead of lime could reduce the costs of the active treatment of the acid mine drainage.

ACS Style

Nela Petronijević; Srđan Stanković; Dragana Radovanović; Miroslav Sokić; Branislav Marković; Srećko R. Stopić; Željko Kamberović. Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia). Metals 2019, 10, 16 .

AMA Style

Nela Petronijević, Srđan Stanković, Dragana Radovanović, Miroslav Sokić, Branislav Marković, Srećko R. Stopić, Željko Kamberović. Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia). Metals. 2019; 10 (1):16.

Chicago/Turabian Style

Nela Petronijević; Srđan Stanković; Dragana Radovanović; Miroslav Sokić; Branislav Marković; Srećko R. Stopić; Željko Kamberović. 2019. "Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia)." Metals 10, no. 1: 16.

Journal article
Published: 30 October 2019 in Metals
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In ores, chalcopyrite is usually associated with other sulfide minerals, such as sphalerite, galena, and pyrite, in a dispersed form, with complex mineralogical structures. Concentrates obtained by flotation of such ores are unsuitable for pyrometallurgical processing owing to their poor quality and low metal recovery. This paper presents the leaching of chalcopyrite concentrate from the location “Rudnik, Serbia”. The samples from the flotation plant were treated with hydrogen peroxide in sulfuric acid. The influences of temperature, particle size, stirring speed, as well as the concentrations of hydrogen peroxide and sulfuric acid were followed and discussed. Hence, the main objective was to optimize the relevant conditions and to determine the reaction kinetics. It was remarked that the increase in temperature, hydrogen peroxide content, and sulfuric acid concentration, as well as the decrease in particle size and stirring speed, contribute to the dissolution of chalcopyrite. The dissolution kinetics follow a model controlled by diffusion, and the lixiviant diffusion controls the rate of reaction through the sulfur layer. Finally, the main characterization methods used to corroborate the obtained results were X-ray diffraction (XRD) as well as qualitative and quantitative light microscopy of the chalcopyrite concentrate samples and the leach residue.

ACS Style

Miroslav Sokić; Branislav Marković; Srđan Stanković; Željko Kamberović; Nada Štrbac; Vaso Manojlović; Nela Petronijević. Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid. Metals 2019, 9, 1173 .

AMA Style

Miroslav Sokić, Branislav Marković, Srđan Stanković, Željko Kamberović, Nada Štrbac, Vaso Manojlović, Nela Petronijević. Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid. Metals. 2019; 9 (11):1173.

Chicago/Turabian Style

Miroslav Sokić; Branislav Marković; Srđan Stanković; Željko Kamberović; Nada Štrbac; Vaso Manojlović; Nela Petronijević. 2019. "Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid." Metals 9, no. 11: 1173.

Journal article
Published: 01 January 2019 in Tehnika
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Primena hidrometalurških procesa omogućava proizvodnju metala iz ruda i koncentrata koji, zbog kompleksne mineralogije i/ili niskog sadržaja metala, nisu pogodni za pirometaluršku preradu. Pored toga, manja potrošnja energije i manji uticaj na životnu sredinu su važne prednosti hidrometalurgije u odnosu na konvencionalne pirometalurške procese. Prilikom luženja sulfidnih minerala sumpornom kiselinom rastvor za luženje mora sadržati oksidaciono sredstvo za oksidaciju sulfidnog sumpora. U ovom radu je ispitivan uticaj temperature na stepen izluženja bakra iz halkopiritnog koncentrata u prisustvu vodonik-peroksida kao oksidansa pri atmosferskom pritisku. Hemijska i rendgenska difrakciona analiza polaznog koncentrata i čvrstog ostatka nakon luženja su korišćene za određivanje mehanizma procesa luženja bakra iz ispitivanog koncentrata. halkopirit; luženje; sumporna kiselina; vodonik-peroksid

ACS Style

Miroslav D. Sokić; Branislav R. Marković; Željko J. Kamberović; Srđan B. Stanković. Leaching of chalcopyrite concentrate by hydrogen peroxide in sulphuric acid solution. Tehnika 2019, 74, 66 -70.

AMA Style

Miroslav D. Sokić, Branislav R. Marković, Željko J. Kamberović, Srđan B. Stanković. Leaching of chalcopyrite concentrate by hydrogen peroxide in sulphuric acid solution. Tehnika. 2019; 74 (1):66-70.

Chicago/Turabian Style

Miroslav D. Sokić; Branislav R. Marković; Željko J. Kamberović; Srđan B. Stanković. 2019. "Leaching of chalcopyrite concentrate by hydrogen peroxide in sulphuric acid solution." Tehnika 74, no. 1: 66-70.

Journal article
Published: 01 January 2017 in Zastita materijala
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Dizajn modernih industrijskih proizvoda je takav da oni predstavljaju kompleksne spojeve različitih materijala. Zbog toga se u postupku reciklaže materijala primenjuju procesi usitnjavanja i razdvajanja. Međutim materijali se ne mogu u potpunosti razdvojiti i zbog toga dolazi do kontaminacija u reciklažnim tokovima. Zbog toga se kvalitet materijala može smanjivati u svakom narednom reciklažnom koraku. Ovakvi kvalitativni gubici ne mogu se opisati masenim bilansom, i u radu je prikazan eksergijski koncept kao merilo gubitaka kvaliteta, odnosno dat je metod za izračunavanje eksergijskog sadržaja i eksergijskog gubitka. Gubici pripisani reciklaži ili tačnije materijalni gubici, gubici usled kontaminacije drugim metalima i posledično potreba za razblaživanjem, mogu se koristiti kao indikatori gubitka kvaliteta materijala i efikasnosti korišćenja resursa u proizvodnim sistemima. U radu je dat primer proračuna na čeličnom otpadu. eksergijski koncept; reciklaža; kontaminacija; kvalitativni gubici

ACS Style

Branislav Markovic; Miroslav Sokic; Ilija Ilic; Vaso Manojlovic; Zvonko Gulisija; Dragana Zivkovic; Nada Strbac; Marković Branislav; Sokić Miroslav; Ilić Ilija; Manojlović Vaso; Gulišija Zvonko; Živković Dragana; Štrbac Nada. Exergy concept and its implementation in the recycling of metals. Zastita materijala 2017, 58, 100 -103.

AMA Style

Branislav Markovic, Miroslav Sokic, Ilija Ilic, Vaso Manojlovic, Zvonko Gulisija, Dragana Zivkovic, Nada Strbac, Marković Branislav, Sokić Miroslav, Ilić Ilija, Manojlović Vaso, Gulišija Zvonko, Živković Dragana, Štrbac Nada. Exergy concept and its implementation in the recycling of metals. Zastita materijala. 2017; 58 (1):100-103.

Chicago/Turabian Style

Branislav Markovic; Miroslav Sokic; Ilija Ilic; Vaso Manojlovic; Zvonko Gulisija; Dragana Zivkovic; Nada Strbac; Marković Branislav; Sokić Miroslav; Ilić Ilija; Manojlović Vaso; Gulišija Zvonko; Živković Dragana; Štrbac Nada. 2017. "Exergy concept and its implementation in the recycling of metals." Zastita materijala 58, no. 1: 100-103.

Journal article
Published: 01 January 2017 in Tehnika
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Production of non ferrous metals from secondary raw materials is far less costly than its production from primary raw materials, due to lower energy consumption. Besides, by recycling of non ferrous metals from secondary raw materials, the natural resources are saved and the amount of waste materials is reduced, directly protecting the environment. The secondary raw materials can originate in metal production and treatment, accompanied by their incorporation into the final product and its elimination due to amortization. The different methods of preparation and metallurgical treatment are used depending on secondary raw materials type. Some of them are very easy to be recycled by remelting in metallurgical furnace, while others must pass through complicated preparation before metallurgical treatment.

ACS Style

Miroslav Sokic; Branislav Markovic; Vladislav Matkovic; Zvonko Gulisija; Vaso Manojlovic; Nada Strbac; Sokić Miroslav; Marković Branislav; Matković Vladislav; Gulišija Zvonko; Manojlović Vaso; Štrbac Nada. The valorization impact and methods for treatment of non ferrous secondary raw materials. Tehnika 2017, 72, 212 -218.

AMA Style

Miroslav Sokic, Branislav Markovic, Vladislav Matkovic, Zvonko Gulisija, Vaso Manojlovic, Nada Strbac, Sokić Miroslav, Marković Branislav, Matković Vladislav, Gulišija Zvonko, Manojlović Vaso, Štrbac Nada. The valorization impact and methods for treatment of non ferrous secondary raw materials. Tehnika. 2017; 72 (2):212-218.

Chicago/Turabian Style

Miroslav Sokic; Branislav Markovic; Vladislav Matkovic; Zvonko Gulisija; Vaso Manojlovic; Nada Strbac; Sokić Miroslav; Marković Branislav; Matković Vladislav; Gulišija Zvonko; Manojlović Vaso; Štrbac Nada. 2017. "The valorization impact and methods for treatment of non ferrous secondary raw materials." Tehnika 72, no. 2: 212-218.

Journal article
Published: 08 June 2016 in Metals
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Electric arc furnace (EAF) dust, together with a mill scale and coke were smelted in a laboratory electric arc furnace. These metallurgical wastes consist of a many different phases and elements, making the reaction process complex. Thermo-chemical analysis of the reactions in metal, slag, and gas phases was done, and used for modeling of the mixture composition and energy consumption required for smelting. Modelling was performed with the software named RikiAlC. The crude ZnO, slag, and metal phase were analyzed using the atomic absorption spectrometry (AAS), the optical emission spectrometry with inductively coupled plasma (ICP-OES), the X-ray diffraction (XRD), the scanning electron microscopy (SEM) equipped with energy dispersive spectrometry (EDS), and reflected and transmitted light microscopy. Also, in order to follow the behavior of this process the exhausted gases were monitored. The synergetic effects of the designed mixture may be recognized in minimizing energy consumption for the smelting process, improving the product yield efficiency, and reducing the negative environmental effects.

ACS Style

Vaso Manojlović; Željko Kamberović; Miroslav Sokić; Milorad Gavrilovski; Marija Korać. Designing of Synergistic Waste Mixtures for Multiphase Reactive Smelting. Metals 2016, 6, 138 .

AMA Style

Vaso Manojlović, Željko Kamberović, Miroslav Sokić, Milorad Gavrilovski, Marija Korać. Designing of Synergistic Waste Mixtures for Multiphase Reactive Smelting. Metals. 2016; 6 (6):138.

Chicago/Turabian Style

Vaso Manojlović; Željko Kamberović; Miroslav Sokić; Milorad Gavrilovski; Marija Korać. 2016. "Designing of Synergistic Waste Mixtures for Multiphase Reactive Smelting." Metals 6, no. 6: 138.

Journal article
Published: 01 January 2016 in Reciklaza i odrzivi razvoj
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Editorial board of the 'Recycling and Sustainable Development' Journal in agreement with the authors of the article titled 'Nanomaterials environmental risks and recycling - actual issues' (D. Zivkovic, Lj. Balanović, A. Mitovski, N. Talijan, N. Strbac , M. Sokić, D. Manasijević, D. Minić, V. Ćosović), which was published in this journal vol. 7 in 2014 (p. 1-8), made the decision to do correction of article because of a perceived serious oversights (based on check out by CEON). Oversight is reflected in inadequate citing a reference, or omission of reference from which the text used by individual states, as well as the duplication of certain references. The necessary correction refers to the parts of the article which reference source is not adequately specified and updates the list of references, in accordance with prescribed procedure.

ACS Style

Dragana Zivkovic; Ljubisa Balanovic; Aleksandra Mitovski; Nadezda Talijan; Nada Strbac; Miroslav Sokic; Dragan Manasijevic; Dusko Minic; Vladan Cosovic; Živković Dragana; Balanović Ljubiša; Mitovski Aleksandra; Talijan Nadežda; Štrbac Nada; Sokić Miroslav; Manasijević Dragan; Minić Duško; Ćosović Vladan. Correction: Nanomaterials environmental risks and recycling: Actual issues (2014, vol. 7, p. 1). Reciklaza i odrzivi razvoj 2016, 9, 1 -4.

AMA Style

Dragana Zivkovic, Ljubisa Balanovic, Aleksandra Mitovski, Nadezda Talijan, Nada Strbac, Miroslav Sokic, Dragan Manasijevic, Dusko Minic, Vladan Cosovic, Živković Dragana, Balanović Ljubiša, Mitovski Aleksandra, Talijan Nadežda, Štrbac Nada, Sokić Miroslav, Manasijević Dragan, Minić Duško, Ćosović Vladan. Correction: Nanomaterials environmental risks and recycling: Actual issues (2014, vol. 7, p. 1). Reciklaza i odrzivi razvoj. 2016; 9 (1):1-4.

Chicago/Turabian Style

Dragana Zivkovic; Ljubisa Balanovic; Aleksandra Mitovski; Nadezda Talijan; Nada Strbac; Miroslav Sokic; Dragan Manasijevic; Dusko Minic; Vladan Cosovic; Živković Dragana; Balanović Ljubiša; Mitovski Aleksandra; Talijan Nadežda; Štrbac Nada; Sokić Miroslav; Manasijević Dragan; Minić Duško; Ćosović Vladan. 2016. "Correction: Nanomaterials environmental risks and recycling: Actual issues (2014, vol. 7, p. 1)." Reciklaza i odrzivi razvoj 9, no. 1: 1-4.

Research article
Published: 18 February 2015 in The Scientific World Journal
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The objects of this investigation were the comparative kinetic analysis of the NiO and NiCl2 reduction by hydrogen during an induction period and elimination of the calcination during the synthesis of Ni/Al2O3 catalysts. The effect of temperature and time on NiO and NiCl2 reduction degrees was studied. Avrami I equation was selected as the most favorable kinetic model and used to determine activation energy of the NiO and NiCl2 reduction for the investigated temperature range (623–923 K) and time intervals (1–5 minutes). The investigation enabled reaching conclusions about the reaction ability and rate of the reduction processes. Afterward, Ni/Al2O3 catalysts were obtained by using oxide and chloride precursor for Ni. The catalysts were supported on alumina-based foam and prepared via aerosol route. Properties of the samples before and after low-temperature hydrogen reduction (633 K) were compared. Obtained results indicated that the synthesis of Ni/Al2O3 catalysts can be more efficient if chloride precursor for Ni is directly reduced by hydrogen during the synthesis process, without the calcination step. In addition, Ni-Pd/Al2O3 catalysts with different metal content were prepared by using chloride precursors. Lower reduction temperature was utilized and the chlorides were almost completely reduced at 533 K.

ACS Style

Miroslav Sokic; Zeljko Kamberovic; Vesna Nikolic; Branislav Marković; Marija Korać; Zoran Anđić; Milorad Gavrilovski. Kinetics of NiO and NiCl2 Hydrogen Reduction as Precursors and Properties of Produced Ni/Al2O3 and Ni-Pd/Al2O3 Catalysts. The Scientific World Journal 2015, 2015, 1 -9.

AMA Style

Miroslav Sokic, Zeljko Kamberovic, Vesna Nikolic, Branislav Marković, Marija Korać, Zoran Anđić, Milorad Gavrilovski. Kinetics of NiO and NiCl2 Hydrogen Reduction as Precursors and Properties of Produced Ni/Al2O3 and Ni-Pd/Al2O3 Catalysts. The Scientific World Journal. 2015; 2015 (5):1-9.

Chicago/Turabian Style

Miroslav Sokic; Zeljko Kamberovic; Vesna Nikolic; Branislav Marković; Marija Korać; Zoran Anđić; Milorad Gavrilovski. 2015. "Kinetics of NiO and NiCl2 Hydrogen Reduction as Precursors and Properties of Produced Ni/Al2O3 and Ni-Pd/Al2O3 Catalysts." The Scientific World Journal 2015, no. 5: 1-9.

Journal article
Published: 01 January 2015 in Zastita materijala
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In the refinement process of bismuth by chlorinating of Bi-Pb alloy (Kroll-Betterton process) as a by-product lead chloride is formed. This study was focused on the lead valorization from PbCl 2 by aluminothermic and zincothermic reduction. Besides lead, as a main product, during aforementioned process technical grade alumina (aluminothermic reduction) and ZnCl2 (zincothermic reduction) were also obtained. The secondary aluminium and zinc of different granulometry were used as a reducent. The effect of temperature, time, granulometry of reducents and stirring speed (zincothermic reduction) on the lead recovery was investigated. Based on the experimental results, the optimal process parameters were defined. Recovery of crude lead (containing 98%Pb) was in the range 95-98% for aluminothermic reduction and 85-90% for zincothermic reduction. The crude lead can be further processed in lead smelters. Technical grade alumina was used in ceramic industry, wile zinc-chloride is suitable for hydrometallurgical treatment giving 50 % solution of zinc-chloride as the final product.

ACS Style

Vladislav Matkovic; Branislav Marković; Miroslav Sokic; Vaso Manojlovic; Matkovic Vladislav; Markovic Branislav; Sokic Miroslav; Manojlović Vaso. Recovery of lead from by-products of the bismuth refining by metallothermic reduction treatments. Zastita materijala 2015, 56, 59 -63.

AMA Style

Vladislav Matkovic, Branislav Marković, Miroslav Sokic, Vaso Manojlovic, Matkovic Vladislav, Markovic Branislav, Sokic Miroslav, Manojlović Vaso. Recovery of lead from by-products of the bismuth refining by metallothermic reduction treatments. Zastita materijala. 2015; 56 (1):59-63.

Chicago/Turabian Style

Vladislav Matkovic; Branislav Marković; Miroslav Sokic; Vaso Manojlovic; Matkovic Vladislav; Markovic Branislav; Sokic Miroslav; Manojlović Vaso. 2015. "Recovery of lead from by-products of the bismuth refining by metallothermic reduction treatments." Zastita materijala 56, no. 1: 59-63.

Journal article
Published: 30 September 2014 in Metallurgical and Materials Engineering
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Understanding the reaction thermochemistry as well as formatting the empirical data about element distribution in gas-metal-slag phases is essential for creating a good model for aluminothermic and carbothermic reaction. In this paper modeling of material and energy balance of these reactions is described with the algorithm. The software, based on this model is basically made for production of high purity ferro alloys through aluminothermic process and then extended for some carbothermic process. Model validation is demonstrated with production of FeTi, FeW, FeB and FeMo in aluminothermic and reduction of mill scale, pyrite cinders and magnetite fines in carbothermic process.

ACS Style

Milorad Gavrilovski; Vaso Manojlović; Zeljko Kamberovic; Marija Korać; Miroslav Sokic; Gavrilovski Milorad; Manojlović Vaso; Kamberović Željko; Korać Marija; Sokic Miroslav. Semi-empirical software for the aluminothermic and carbothermic reactions. Metallurgical and Materials Engineering 2014, 20, 199 -206.

AMA Style

Milorad Gavrilovski, Vaso Manojlović, Zeljko Kamberovic, Marija Korać, Miroslav Sokic, Gavrilovski Milorad, Manojlović Vaso, Kamberović Željko, Korać Marija, Sokic Miroslav. Semi-empirical software for the aluminothermic and carbothermic reactions. Metallurgical and Materials Engineering. 2014; 20 (3):199-206.

Chicago/Turabian Style

Milorad Gavrilovski; Vaso Manojlović; Zeljko Kamberovic; Marija Korać; Miroslav Sokic; Gavrilovski Milorad; Manojlović Vaso; Kamberović Željko; Korać Marija; Sokic Miroslav. 2014. "Semi-empirical software for the aluminothermic and carbothermic reactions." Metallurgical and Materials Engineering 20, no. 3: 199-206.

Journal article
Published: 31 March 2014 in Metallurgical and Materials Engineering
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During the chalcopyrite leaching by sodium nitrate and sulfuric acid solution, leaching rate decreases with increasing the time and a part of chalcopyrite mineral grains remains in the leach residue. In chalcopyrite concentrate, 95.5 % of chalcopyrite mineral occurs as in liberated grains, and the rest is in association with gangue minerals, which is very favorably from the aspect of hydrometallurgical treatment. Complex forms, like impregnations and complex intergrowths, do not exist. After experiments carried out, leaching of copper achieved 84 % at temperature 80 o C and time 240 min. In the all leach residues, 97 % chalcopyrite mineral grains occur as liberated with highly corroded surfaces. Therefore, the structural assembly of chalcopyrite grains is favorable and no reason to reduce the leaching rate in the final stage of reaction. Reason for this is elemental sulfur, which was formed during the reaction, precipitated at the particle surfaces, and slowed down the leaching rate in the final stage of leaching process.

ACS Style

Miroslav Sokić; Slobodan Radosavljevic; Branislav Marković; Vladislav Matkovic; Nada Strbac; Zeljko Kamberovic; Dragana Zivkovic; Sokic Miroslav; Radosavljević Slobodan; Markovic Branislav; Matkovic Vladislav; Strbac Nada; Kamberović Željko; Zivkovic Dragana. Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid. Metallurgical and Materials Engineering 2014, 20, 53 -60.

AMA Style

Miroslav Sokić, Slobodan Radosavljevic, Branislav Marković, Vladislav Matkovic, Nada Strbac, Zeljko Kamberovic, Dragana Zivkovic, Sokic Miroslav, Radosavljević Slobodan, Markovic Branislav, Matkovic Vladislav, Strbac Nada, Kamberović Željko, Zivkovic Dragana. Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid. Metallurgical and Materials Engineering. 2014; 20 (1):53-60.

Chicago/Turabian Style

Miroslav Sokić; Slobodan Radosavljevic; Branislav Marković; Vladislav Matkovic; Nada Strbac; Zeljko Kamberovic; Dragana Zivkovic; Sokic Miroslav; Radosavljević Slobodan; Markovic Branislav; Matkovic Vladislav; Strbac Nada; Kamberović Željko; Zivkovic Dragana. 2014. "Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid." Metallurgical and Materials Engineering 20, no. 1: 53-60.

Journal article
Published: 01 January 2014 in Zastita materijala
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U ovom radu je ispitivana mogućnost dobijanja maskirnog pigmenta mehanohemijsko termičkim postupkom kao i energetsko učešće mehanohemijskog tretmana u dobijanju maskirnog pigmenta stehiometrijske formule Co0,51Zn0,29Mg0,41Cr1,24Al0,24Ti0,31O4. Mehanohemijski i termički tretirani uzorci smeše oksida radi dobijanja kompleksnog spinela su eksperimentalno istraživani u više serija opita, pri čemu su menjani parametri vezani za rad visokoenergetskog vibracionog mehanoaktivatora. Mehanohemijskom aktivacijom smeše oksida (Cr2O3, CO-oksida, ZnO, TiO2, MgO i Al2O3), u vibracionom mehanoaktivatoru sa prstenovima od 30; 60 i 90 min, a zatim termičkim tretiranjem u elektrootpornoj peći, pri vremenu zadržavanja uzorka od 1h, dobija se materijal spinelne strukture koji je pogodan kao maskirni pigment u vojnoj industriji. spinel; mehanohemijska aktivacija; vibracioni mehanoaktivator; žarenje

ACS Style

Milan Petrov; Miroslav Sokic; Zvonko Gulisija; Vladislav Matkovic; Ljubisa Andric; Jovica Stojanović; Petrov Milan; Sokic Miroslav; Gulišija Zvonko; Matkovic Vladislav; Andrić Ljubiša; Stojanović Jovica. Mechanochemical-thermal process of obtaining masking pigment. Zastita materijala 2014, 55, 413 -418.

AMA Style

Milan Petrov, Miroslav Sokic, Zvonko Gulisija, Vladislav Matkovic, Ljubisa Andric, Jovica Stojanović, Petrov Milan, Sokic Miroslav, Gulišija Zvonko, Matkovic Vladislav, Andrić Ljubiša, Stojanović Jovica. Mechanochemical-thermal process of obtaining masking pigment. Zastita materijala. 2014; 55 (4):413-418.

Chicago/Turabian Style

Milan Petrov; Miroslav Sokic; Zvonko Gulisija; Vladislav Matkovic; Ljubisa Andric; Jovica Stojanović; Petrov Milan; Sokic Miroslav; Gulišija Zvonko; Matkovic Vladislav; Andrić Ljubiša; Stojanović Jovica. 2014. "Mechanochemical-thermal process of obtaining masking pigment." Zastita materijala 55, no. 4: 413-418.

Journal article
Published: 01 January 2014 in Reciklaza i odrzivi razvoj
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Nanotehnologije se smatraju pokretačkom snagom nove industrijske revolucije. Nanonauka je tokom poslednje decenije značajno evoluirala od nauke koja se isključivo razvijala u laboratorijskim uslovima, do njene aplikacije u primenjenim tehnologijama. Trenutno, nanomaterijali se koriste u širokom spektru komercijalnih proizvoda kao što su elektronske komponente, sportska oprema, kreme za sunčanje i u biomedicinske svrhe. Veličina nanočestica omogućava im snažnu interakciju sa biološkim strukturama, tako da nanočestice predstavljaju potencijalni rizik po životnu sredinu i zdravlje ljudi. Nanometar kao veličina takođe predstavlja problem za separaciju, reciklažu i ponovno korišćenje nanočestica. Dakle, proizvodnja nanomaterijala u industrijskim razmerama i njihova primena mogli bi imati značajan uticaj na zdravlje ljudi i životnu sredinu ili stvorili probleme pri reciklaži. Sveobuhvatni termin 'nanotehnologija' nije dovoljno precizan kada se radi o upravljanju rizicima. Procena mogućih rizika zavisi od razmatranja životnog ciklusa materijala koji se proizvodi, a koji uključuje razumevanje procesa i materijala koji se koriste u proizvodnji, verovatne interakcije između proizvoda i pojedinaca ili životne sredine tokom proizvodnje nanomaterijala i njegovog životnog ciklusa, kao i metoda koje se koriste za njihovo konačno odlaganje. Sa stanovišta kontrole rizika, neophodno je identifikovati kritične faze, koje je neophodno detaljno istražiti. Pregled aktuelnih trendova ekoloških rizika i reciklaži nanomaterijala prezentovan je u ovom radu. nanomaterijali; okolina; separacija; reciklaža; rizik

ACS Style

Dragana Živković; Ljubiša Balanović; Aleksandra Mitovski; Nadežda Talijan; Nada Strbac; Miroslav Sokic; Dragan Manasijevic; Dusko Minic; Vladan Ćosović; Zivkovic Dragana; Balanovic Ljubisa; Mitovski Aleksandra; Talijan Nadežda; Strbac Nada; Sokic Miroslav; Manasijevic Dragan; Minic Dusko; Ćosović Vladan. Nanomaterials environmental risks and recycling: Actual issues. Reciklaza i odrzivi razvoj 2014, 7, 1 -8.

AMA Style

Dragana Živković, Ljubiša Balanović, Aleksandra Mitovski, Nadežda Talijan, Nada Strbac, Miroslav Sokic, Dragan Manasijevic, Dusko Minic, Vladan Ćosović, Zivkovic Dragana, Balanovic Ljubisa, Mitovski Aleksandra, Talijan Nadežda, Strbac Nada, Sokic Miroslav, Manasijevic Dragan, Minic Dusko, Ćosović Vladan. Nanomaterials environmental risks and recycling: Actual issues. Reciklaza i odrzivi razvoj. 2014; 7 (1):1-8.

Chicago/Turabian Style

Dragana Živković; Ljubiša Balanović; Aleksandra Mitovski; Nadežda Talijan; Nada Strbac; Miroslav Sokic; Dragan Manasijevic; Dusko Minic; Vladan Ćosović; Zivkovic Dragana; Balanovic Ljubisa; Mitovski Aleksandra; Talijan Nadežda; Strbac Nada; Sokic Miroslav; Manasijevic Dragan; Minic Dusko; Ćosović Vladan. 2014. "Nanomaterials environmental risks and recycling: Actual issues." Reciklaza i odrzivi razvoj 7, no. 1: 1-8.