TY  - JOUR
AU  - Issa, Hatim
AU  - Kamberović, Željko
AU  - Gavrilovski, Milorad
AU  - Korać, Marija
AU  - Andić, Z.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2264
AB  - Present paper represents a methodology for establishing a relationship between the composition of mixtures of iron-bearing non-standard dispersed raw materials for production of sinter and its most important metallurgical properties, in accordance with the appropriate phase of the production technological process. Using an appropriate software package, the database of available resources is formed. Raw data in the database include: chemical composition, bulk density, grain size distribution, moisture content and the annual quantity generated. The base is divided into basic raw materials and additives. Basic, iron-bearing, raw materials are electro-arc furnace dust (EAFD), pyrite cinder and mill scale, and additives are: flux (lime), binders (cement, bentonite) and reducer (coke). For the study of these relations the planned experiment is conducted, based on the Simplex plane. The connection between the composition of the dispersed iron-bearing mixture, as an independent variable, and dependent variables (metallurgical properties such as resistance to impingement and compression strength) was determined using correlation and regression analysis, where mathematical models for fast and reliable projected synthesis the required metallurgical properties of sinter were obtained.
PB  - Editura Stiintifica Fmr, Bucharest
T2  - Metalurgia International
T1  - Modeling of metallurgical properties of sinter mixtures of non-standard raw iron-bearing materials
EP  - 8
IS  - SPEC.2
SP  - 5
VL  - 18
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2264
ER  - 

@article{
author = "Issa, Hatim and Kamberović, Željko and Gavrilovski, Milorad and Korać, Marija and Andić, Z.",
year = "2013",
abstract = "Present paper represents a methodology for establishing a relationship between the composition of mixtures of iron-bearing non-standard dispersed raw materials for production of sinter and its most important metallurgical properties, in accordance with the appropriate phase of the production technological process. Using an appropriate software package, the database of available resources is formed. Raw data in the database include: chemical composition, bulk density, grain size distribution, moisture content and the annual quantity generated. The base is divided into basic raw materials and additives. Basic, iron-bearing, raw materials are electro-arc furnace dust (EAFD), pyrite cinder and mill scale, and additives are: flux (lime), binders (cement, bentonite) and reducer (coke). For the study of these relations the planned experiment is conducted, based on the Simplex plane. The connection between the composition of the dispersed iron-bearing mixture, as an independent variable, and dependent variables (metallurgical properties such as resistance to impingement and compression strength) was determined using correlation and regression analysis, where mathematical models for fast and reliable projected synthesis the required metallurgical properties of sinter were obtained.",
publisher = "Editura Stiintifica Fmr, Bucharest",
journal = "Metalurgia International",
title = "Modeling of metallurgical properties of sinter mixtures of non-standard raw iron-bearing materials",
pages = "8-5",
number = "SPEC.2",
volume = "18",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2264"
}

Issa, H., Kamberović, Ž., Gavrilovski, M., Korać, M.,& Andić, Z.. (2013). Modeling of metallurgical properties of sinter mixtures of non-standard raw iron-bearing materials. in Metalurgia International
Editura Stiintifica Fmr, Bucharest., 18(SPEC.2), 5-8.
https://hdl.handle.net/21.15107/rcub_technorep_2264

Issa H, Kamberović Ž, Gavrilovski M, Korać M, Andić Z. Modeling of metallurgical properties of sinter mixtures of non-standard raw iron-bearing materials. in Metalurgia International. 2013;18(SPEC.2):5-8.
https://hdl.handle.net/21.15107/rcub_technorep_2264 .

Issa, Hatim, Kamberović, Željko, Gavrilovski, Milorad, Korać, Marija, Andić, Z., "Modeling of metallurgical properties of sinter mixtures of non-standard raw iron-bearing materials" in Metalurgia International, 18, no. SPEC.2 (2013):5-8,
https://hdl.handle.net/21.15107/rcub_technorep_2264 .

TY  - JOUR
AU  - Kamberović, Željko
AU  - Raić, Karlo
AU  - Filipović, M.
AU  - Andić, Z.
AU  - Korać, Marija
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1967
AB  - Presented study shows the analysis of the process of reduction of WO3 powder with hydrogen in the vertical tube reactor, representing a new approach in comparison to the conventional methods in the horizontal tube reactor. SEM analysis of the synthetisized tungsten powder shows the existence of particles, approximately 1μm in size, both individual ones and those within the porous agglomerates with a spongy structure. In order to study the mechanism and kinetics of the reduction process, the reduction degree and retention time of particles of WO3 powder in the reaction zone were calculated using a developed mathematical model, based on the application of Stokes' law. Kinetic parameters and activation energies were determined at the corresponding temperature intervals. Kinetic analysis showed that the process of WO3 reduction with hydrogen in the vertical tube reactor in the temperature interval from 700 to 900oC occurs in the kinetic zone. Activation energy for the temperature interval from 700 to 800oC is Ea1=7.5±0.1kJ/mol, where as for the temperature interval from 800 to 900oC, activation energy is Ea2=14.6±0.1kJ/mol. A model was proposed describing the mechanism of the reduction process in the vertical tube reactor according to which particles of tungsten powder 1μm in size arise from the stretching and cracking of coarse particles in the reduction zone, as well as from the appropriate temperature shock outside this zone.
PB  - Editura Stiintifica Fmr, Bucharest
T2  - Metalurgia International
T1  - The mechanism and kinetics of the tungsten (VI)-oxide reduction in the vertical tube reactor
EP  - 21
IS  - 4
SP  - 16
VL  - 17
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1967
ER  - 

@article{
author = "Kamberović, Željko and Raić, Karlo and Filipović, M. and Andić, Z. and Korać, Marija",
year = "2012",
abstract = "Presented study shows the analysis of the process of reduction of WO3 powder with hydrogen in the vertical tube reactor, representing a new approach in comparison to the conventional methods in the horizontal tube reactor. SEM analysis of the synthetisized tungsten powder shows the existence of particles, approximately 1μm in size, both individual ones and those within the porous agglomerates with a spongy structure. In order to study the mechanism and kinetics of the reduction process, the reduction degree and retention time of particles of WO3 powder in the reaction zone were calculated using a developed mathematical model, based on the application of Stokes' law. Kinetic parameters and activation energies were determined at the corresponding temperature intervals. Kinetic analysis showed that the process of WO3 reduction with hydrogen in the vertical tube reactor in the temperature interval from 700 to 900oC occurs in the kinetic zone. Activation energy for the temperature interval from 700 to 800oC is Ea1=7.5±0.1kJ/mol, where as for the temperature interval from 800 to 900oC, activation energy is Ea2=14.6±0.1kJ/mol. A model was proposed describing the mechanism of the reduction process in the vertical tube reactor according to which particles of tungsten powder 1μm in size arise from the stretching and cracking of coarse particles in the reduction zone, as well as from the appropriate temperature shock outside this zone.",
publisher = "Editura Stiintifica Fmr, Bucharest",
journal = "Metalurgia International",
title = "The mechanism and kinetics of the tungsten (VI)-oxide reduction in the vertical tube reactor",
pages = "21-16",
number = "4",
volume = "17",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1967"
}

Kamberović, Ž., Raić, K., Filipović, M., Andić, Z.,& Korać, M.. (2012). The mechanism and kinetics of the tungsten (VI)-oxide reduction in the vertical tube reactor. in Metalurgia International
Editura Stiintifica Fmr, Bucharest., 17(4), 16-21.
https://hdl.handle.net/21.15107/rcub_technorep_1967

Kamberović Ž, Raić K, Filipović M, Andić Z, Korać M. The mechanism and kinetics of the tungsten (VI)-oxide reduction in the vertical tube reactor. in Metalurgia International. 2012;17(4):16-21.
https://hdl.handle.net/21.15107/rcub_technorep_1967 .

Kamberović, Željko, Raić, Karlo, Filipović, M., Andić, Z., Korać, Marija, "The mechanism and kinetics of the tungsten (VI)-oxide reduction in the vertical tube reactor" in Metalurgia International, 17, no. 4 (2012):16-21,
https://hdl.handle.net/21.15107/rcub_technorep_1967 .

TY  - JOUR
AU  - Andić, Z.
AU  - Korać, Marija
AU  - Tasić, M.
AU  - Raić, Karlo
AU  - Kamberović, Željko
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/875
AB  - Contemporary materials with predetermined properties can be successfully synthesized by utilizing the principles of hydrometallurgy and powder metallurgy. The results of developing a new procedure for the synthesis of ultrafine and nanocomposite powders based on copper, silver and alumina are presented in this paper. A two-component nanocomposite powder, Cu-Al2O3, was synthesized by a thermochemical procedure, by deposition from an aqueous solution of soluble metal salts, Cu(NO3)(2) and Al(NO3)(3). A three-component Cu-Ag-Al2O3 powder was produced by mechanically alloying nanocomposite Cu-Al2O3 powder and Cu-Ag powder, synthesized by the thermochemical procedure. The produced powders were characterized by determining the particle specific area, pouring density and fluidness, differential thermal and thermogravimetric analysis (DTA-TGA), X-ray diffraction (XRD) and scanning electron microscopy (SEM).
T2  - Kovove Materialy
T1  - The synthesis of ultrafine and nanocomposite powders based on copper, silver anal alumina
EP  - 150
IS  - 3
SP  - 145
VL  - 44
UR  - https://hdl.handle.net/21.15107/rcub_technorep_875
ER  - 

@article{
author = "Andić, Z. and Korać, Marija and Tasić, M. and Raić, Karlo and Kamberović, Željko",
year = "2006",
abstract = "Contemporary materials with predetermined properties can be successfully synthesized by utilizing the principles of hydrometallurgy and powder metallurgy. The results of developing a new procedure for the synthesis of ultrafine and nanocomposite powders based on copper, silver and alumina are presented in this paper. A two-component nanocomposite powder, Cu-Al2O3, was synthesized by a thermochemical procedure, by deposition from an aqueous solution of soluble metal salts, Cu(NO3)(2) and Al(NO3)(3). A three-component Cu-Ag-Al2O3 powder was produced by mechanically alloying nanocomposite Cu-Al2O3 powder and Cu-Ag powder, synthesized by the thermochemical procedure. The produced powders were characterized by determining the particle specific area, pouring density and fluidness, differential thermal and thermogravimetric analysis (DTA-TGA), X-ray diffraction (XRD) and scanning electron microscopy (SEM).",
journal = "Kovove Materialy",
title = "The synthesis of ultrafine and nanocomposite powders based on copper, silver anal alumina",
pages = "150-145",
number = "3",
volume = "44",
url = "https://hdl.handle.net/21.15107/rcub_technorep_875"
}

Andić, Z., Korać, M., Tasić, M., Raić, K.,& Kamberović, Ž.. (2006). The synthesis of ultrafine and nanocomposite powders based on copper, silver anal alumina. in Kovove Materialy, 44(3), 145-150.
https://hdl.handle.net/21.15107/rcub_technorep_875

Andić Z, Korać M, Tasić M, Raić K, Kamberović Ž. The synthesis of ultrafine and nanocomposite powders based on copper, silver anal alumina. in Kovove Materialy. 2006;44(3):145-150.
https://hdl.handle.net/21.15107/rcub_technorep_875 .

Andić, Z., Korać, Marija, Tasić, M., Raić, Karlo, Kamberović, Željko, "The synthesis of ultrafine and nanocomposite powders based on copper, silver anal alumina" in Kovove Materialy, 44, no. 3 (2006):145-150,
https://hdl.handle.net/21.15107/rcub_technorep_875 .