Mechanochemistry treatment of low quality mineral raw materials

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Mechanochemistry treatment of low quality mineral raw materials (en)
Механохемијски третман недовољно квалитетних минералних сировина (sr)
Mehanohemijski tretman nedovoljno kvalitetnih mineralnih sirovina (sr_RS)
Authors

Publications

Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling

Terzić, Anja; Pezo, Lato; Andrić, Ljubiša; Pavlović, Vladimir; Mitić, Vojislav

(Elsevier Sci Ltd, Oxford, 2017)

TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Andrić, Ljubiša
AU  - Pavlović, Vladimir
AU  - Mitić, Vojislav
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/307
AB  - The properties of seven montmorillonite-rich bentonites of different geological origin were investigated prior and subsequent to mechano-chemical processing in an ultra-centrifugal mill. The objective of the experiment was altering the bentonite types and activation parameters in order to determine the optimal milling conditions that produce material which is physico-mechanically and microstructurally applicable as a binder replacement and sorbent in the construction composites. The efficiency of bentonite activation was assessed by chemometrics and Artificial neural networks mathematical modeling. Principal component analysis and analysis of variance were used in the observation of the influence of input variables (bentonite chemical composition) and process parameters (milling duration, rotor velocity) on the product characteristics: density, specific surface area, grain size and distribution, cation exchange capacity, melting point, compressive strength, shrinkage and porosity. When the ANN models for the observed responses, related to predicted bentonite characteristics and quality, were compared to experimental results, they correctly predicted the responses. The processed data also adequately fitted to the regression second order polynomial models. The SOP models, which showed r(2) values from 0.357 to 0.948, and were able to predict the observed responses in a wide range of processing parameters, while ANN models performed high prediction accuracy (0.776-0.901) and can be considered as precise for response variables prediction. The combination of the conducted mathematical analyses showed that that increase/decrease in output values was stabilized after 30 min of activation. Mathematically attained interpretations were correlated with the results of the instrumental analyses (XRD, DTA/TG, SEM) to confirm the adoption of B6 bentonite as a preferable type and 30 min as an optimal milling time for acquiring quality of clay powder that will be used in structural and thermal applications.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling
EP  - 2562
IS  - 2
SP  - 2549
VL  - 43
DO  - 10.1016/j.ceramint.2016.11.058
ER  - 
@article{
author = "Terzić, Anja and Pezo, Lato and Andrić, Ljubiša and Pavlović, Vladimir and Mitić, Vojislav",
year = "2017",
abstract = "The properties of seven montmorillonite-rich bentonites of different geological origin were investigated prior and subsequent to mechano-chemical processing in an ultra-centrifugal mill. The objective of the experiment was altering the bentonite types and activation parameters in order to determine the optimal milling conditions that produce material which is physico-mechanically and microstructurally applicable as a binder replacement and sorbent in the construction composites. The efficiency of bentonite activation was assessed by chemometrics and Artificial neural networks mathematical modeling. Principal component analysis and analysis of variance were used in the observation of the influence of input variables (bentonite chemical composition) and process parameters (milling duration, rotor velocity) on the product characteristics: density, specific surface area, grain size and distribution, cation exchange capacity, melting point, compressive strength, shrinkage and porosity. When the ANN models for the observed responses, related to predicted bentonite characteristics and quality, were compared to experimental results, they correctly predicted the responses. The processed data also adequately fitted to the regression second order polynomial models. The SOP models, which showed r(2) values from 0.357 to 0.948, and were able to predict the observed responses in a wide range of processing parameters, while ANN models performed high prediction accuracy (0.776-0.901) and can be considered as precise for response variables prediction. The combination of the conducted mathematical analyses showed that that increase/decrease in output values was stabilized after 30 min of activation. Mathematically attained interpretations were correlated with the results of the instrumental analyses (XRD, DTA/TG, SEM) to confirm the adoption of B6 bentonite as a preferable type and 30 min as an optimal milling time for acquiring quality of clay powder that will be used in structural and thermal applications.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling",
pages = "2562-2549",
number = "2",
volume = "43",
doi = "10.1016/j.ceramint.2016.11.058"
}
Terzić, A., Pezo, L., Andrić, L., Pavlović, V.,& Mitić, V.. (2017). Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling. in Ceramics International
Elsevier Sci Ltd, Oxford., 43(2), 2549-2562.
https://doi.org/10.1016/j.ceramint.2016.11.058
Terzić A, Pezo L, Andrić L, Pavlović V, Mitić V. Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling. in Ceramics International. 2017;43(2):2549-2562.
doi:10.1016/j.ceramint.2016.11.058 .
Terzić, Anja, Pezo, Lato, Andrić, Ljubiša, Pavlović, Vladimir, Mitić, Vojislav, "Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling" in Ceramics International, 43, no. 2 (2017):2549-2562,
https://doi.org/10.1016/j.ceramint.2016.11.058 . .
15
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17

Chemometric Analysis of Alternations in Coal Ash Quality Induced by Application of Different Mechano-chemical Processing Parameters

Terzić, Anja; Pezo, Lato; Andrić, Ljubiša

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2017)

TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Andrić, Ljubiša
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/310
AB  - The coal fly ash mechano-chemical activation conducted via high energy ultra-centrifugal mill was optimized using mathematical and statistical tools. The aim of the investigation was to accent the merits of alternations in ash processing schemes with a referral regarding the enhancement of the ash reactivity that will lead to its higher volume utilization as a cement replacement in concrete design. The impact of the processing parameters sets (number of rotor revolutions, current intensity, activation period, circumferential rotor speed, mill capacity) on the on the product's quality factors (grain size distribution, average grain size, micronization level, agglomeration tendency, specific surface area) was assessed via Response surface method, Standard score analysis and Principal component analysis in order to obtain the most favorable output. Developed models were able to meticulously predict quality parameters in an extensive range of processing parameters. The calculated r(2) values were in the range of 0.846-0.999. The optimal ash sample, that reached the Standard Score as high as 0.93, was produced using a set of processing parameters appropriate to experimental sequence with applied 120 mu m sieve mesh. The microstructural characteristics were assessed using image-processing values and histogram plots of the activated fly ash SEM images.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Chemometric Analysis of Alternations in Coal Ash Quality Induced by Application of Different Mechano-chemical Processing Parameters
EP  - 397
IS  - 4
SP  - 381
VL  - 49
DO  - 10.2298/SOS1704381T
ER  - 
@article{
author = "Terzić, Anja and Pezo, Lato and Andrić, Ljubiša",
year = "2017",
abstract = "The coal fly ash mechano-chemical activation conducted via high energy ultra-centrifugal mill was optimized using mathematical and statistical tools. The aim of the investigation was to accent the merits of alternations in ash processing schemes with a referral regarding the enhancement of the ash reactivity that will lead to its higher volume utilization as a cement replacement in concrete design. The impact of the processing parameters sets (number of rotor revolutions, current intensity, activation period, circumferential rotor speed, mill capacity) on the on the product's quality factors (grain size distribution, average grain size, micronization level, agglomeration tendency, specific surface area) was assessed via Response surface method, Standard score analysis and Principal component analysis in order to obtain the most favorable output. Developed models were able to meticulously predict quality parameters in an extensive range of processing parameters. The calculated r(2) values were in the range of 0.846-0.999. The optimal ash sample, that reached the Standard Score as high as 0.93, was produced using a set of processing parameters appropriate to experimental sequence with applied 120 mu m sieve mesh. The microstructural characteristics were assessed using image-processing values and histogram plots of the activated fly ash SEM images.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Chemometric Analysis of Alternations in Coal Ash Quality Induced by Application of Different Mechano-chemical Processing Parameters",
pages = "397-381",
number = "4",
volume = "49",
doi = "10.2298/SOS1704381T"
}
Terzić, A., Pezo, L.,& Andrić, L.. (2017). Chemometric Analysis of Alternations in Coal Ash Quality Induced by Application of Different Mechano-chemical Processing Parameters. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(4), 381-397.
https://doi.org/10.2298/SOS1704381T
Terzić A, Pezo L, Andrić L. Chemometric Analysis of Alternations in Coal Ash Quality Induced by Application of Different Mechano-chemical Processing Parameters. in Science of Sintering. 2017;49(4):381-397.
doi:10.2298/SOS1704381T .
Terzić, Anja, Pezo, Lato, Andrić, Ljubiša, "Chemometric Analysis of Alternations in Coal Ash Quality Induced by Application of Different Mechano-chemical Processing Parameters" in Science of Sintering, 49, no. 4 (2017):381-397,
https://doi.org/10.2298/SOS1704381T . .
4
2

Chemometric assessment of mechano-chemically activated zeolites for application in the construction composites

Terzić, Anja; Pezo, Lato; Andrić, Ljubiša

(Elsevier Sci Ltd, Oxford, 2017)

TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Andrić, Ljubiša
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/306
AB  - Natural zeolites of clinoptilolite type from seven deposits were submitted to mechano-chemical activation in a Retsch ultra -centrifugal mill. The zeolite types and activation parameters were altered during the experiment with an aim to determine the optimal combination that would produce powder with adequate physico-chemical and microstructural properties for application as a binder replacement and an ion -exchanger in the construction composites. The effects of input variables (chemical composition of the samples) and process parameters (the rotor velocity and the activation period) on the efficiency of zeolite activation were investigated in terms of dependent parameters such as: specific surface area, grain size distribution, cation exchange capacity, melting point, compression strength, shrinking, water absorption and apparent porosity. Cluster analysis, Principal component analysis and Standard score analysis were applied in the assessment of the acquired product quality. Artificial neural networks (ANN) were developed in mathematical modeling of observed responses. Subsequently the ANN was compared to experimental results and the developed second order polynomial models. Developed models showed r(2) values in the 0.822-0.998 range, meaning that they were able to predict the observed responses in a wide range of processing parameters. ANN models performed high prediction accuracy (0.975-0.993) and can be considered as precise and very useful for response variables prediction. The combination of the conducted mathematical analyses isolated Z5 zeolite as a preferable type, and 20000 rpm and 30 min as an optimal activation set of parameters. Mathematically derived conclusions were confirmed by results of instrumental analyses (XRD, DTA/TG, SEM).
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Chemometric assessment of mechano-chemically activated zeolites for application in the construction composites
EP  - 44
SP  - 30
VL  - 109
DO  - 10.1016/j.compositesb.2016.10.040
ER  - 
@article{
author = "Terzić, Anja and Pezo, Lato and Andrić, Ljubiša",
year = "2017",
abstract = "Natural zeolites of clinoptilolite type from seven deposits were submitted to mechano-chemical activation in a Retsch ultra -centrifugal mill. The zeolite types and activation parameters were altered during the experiment with an aim to determine the optimal combination that would produce powder with adequate physico-chemical and microstructural properties for application as a binder replacement and an ion -exchanger in the construction composites. The effects of input variables (chemical composition of the samples) and process parameters (the rotor velocity and the activation period) on the efficiency of zeolite activation were investigated in terms of dependent parameters such as: specific surface area, grain size distribution, cation exchange capacity, melting point, compression strength, shrinking, water absorption and apparent porosity. Cluster analysis, Principal component analysis and Standard score analysis were applied in the assessment of the acquired product quality. Artificial neural networks (ANN) were developed in mathematical modeling of observed responses. Subsequently the ANN was compared to experimental results and the developed second order polynomial models. Developed models showed r(2) values in the 0.822-0.998 range, meaning that they were able to predict the observed responses in a wide range of processing parameters. ANN models performed high prediction accuracy (0.975-0.993) and can be considered as precise and very useful for response variables prediction. The combination of the conducted mathematical analyses isolated Z5 zeolite as a preferable type, and 20000 rpm and 30 min as an optimal activation set of parameters. Mathematically derived conclusions were confirmed by results of instrumental analyses (XRD, DTA/TG, SEM).",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Chemometric assessment of mechano-chemically activated zeolites for application in the construction composites",
pages = "44-30",
volume = "109",
doi = "10.1016/j.compositesb.2016.10.040"
}
Terzić, A., Pezo, L.,& Andrić, L.. (2017). Chemometric assessment of mechano-chemically activated zeolites for application in the construction composites. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 109, 30-44.
https://doi.org/10.1016/j.compositesb.2016.10.040
Terzić A, Pezo L, Andrić L. Chemometric assessment of mechano-chemically activated zeolites for application in the construction composites. in Composites Part B-Engineering. 2017;109:30-44.
doi:10.1016/j.compositesb.2016.10.040 .
Terzić, Anja, Pezo, Lato, Andrić, Ljubiša, "Chemometric assessment of mechano-chemically activated zeolites for application in the construction composites" in Composites Part B-Engineering, 109 (2017):30-44,
https://doi.org/10.1016/j.compositesb.2016.10.040 . .
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A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path

Radulović, Dragan; Božović, D.; Terzić, Anja; Trumić, M. S.; Simić, Vladimir; Andrić, Ljubiša

(Goller Verlag Gmbh, Baden Baden, 2017)

TY  - JOUR
AU  - Radulović, Dragan
AU  - Božović, D.
AU  - Terzić, Anja
AU  - Trumić, M. S.
AU  - Simić, Vladimir
AU  - Andrić, Ljubiša
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/323
AB  - Because of its physico-mechanical and physico-chemical characteristics, fine-ground (i.e. micronized) limestone is widely applied in the production of new materials. Limestone can be used as a filler, coating and/or powder in ceramic composites. The effect of its fine micronization depends on the type of equipment used and on the disintegration process. In this study, the emphasis was placed on investigation of the kinetics of the dry micronization milling of limestone in a state-of-the-art ultra-centrifugal mill with a peripheral comminuting path. The efficiency of the ultra-centrifugal mill with a peripheral comminuting path was determined based on a detailed investigation of the limestone dry micronization, which satisfied all the requirements for technological parameters as well as for micronized product parameters. On the basis of the investigation of these parameters and theory of dry micronization conducted in a state-of-the-art mill with use of advanced instrumental techniques for determination and observation of the most significant physical and chemical characteristics, a kinetics model was developed to serve as the basis for quick and effective determination of micronization quality and efficiency. In this paper, the results of grinding in a Retsch ZM-1 ultra-centrifugal mill were analyzed in order to optimize and automate the process of ultrafine micronization.
PB  - Goller Verlag Gmbh, Baden Baden
T2  - Journal of Ceramic Science and Technology
T1  - A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path
EP  - 304
IS  - 2
SP  - 295
VL  - 8
DO  - 10.4416/JCST2017-00022
ER  - 
@article{
author = "Radulović, Dragan and Božović, D. and Terzić, Anja and Trumić, M. S. and Simić, Vladimir and Andrić, Ljubiša",
year = "2017",
abstract = "Because of its physico-mechanical and physico-chemical characteristics, fine-ground (i.e. micronized) limestone is widely applied in the production of new materials. Limestone can be used as a filler, coating and/or powder in ceramic composites. The effect of its fine micronization depends on the type of equipment used and on the disintegration process. In this study, the emphasis was placed on investigation of the kinetics of the dry micronization milling of limestone in a state-of-the-art ultra-centrifugal mill with a peripheral comminuting path. The efficiency of the ultra-centrifugal mill with a peripheral comminuting path was determined based on a detailed investigation of the limestone dry micronization, which satisfied all the requirements for technological parameters as well as for micronized product parameters. On the basis of the investigation of these parameters and theory of dry micronization conducted in a state-of-the-art mill with use of advanced instrumental techniques for determination and observation of the most significant physical and chemical characteristics, a kinetics model was developed to serve as the basis for quick and effective determination of micronization quality and efficiency. In this paper, the results of grinding in a Retsch ZM-1 ultra-centrifugal mill were analyzed in order to optimize and automate the process of ultrafine micronization.",
publisher = "Goller Verlag Gmbh, Baden Baden",
journal = "Journal of Ceramic Science and Technology",
title = "A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path",
pages = "304-295",
number = "2",
volume = "8",
doi = "10.4416/JCST2017-00022"
}
Radulović, D., Božović, D., Terzić, A., Trumić, M. S., Simić, V.,& Andrić, L.. (2017). A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path. in Journal of Ceramic Science and Technology
Goller Verlag Gmbh, Baden Baden., 8(2), 295-304.
https://doi.org/10.4416/JCST2017-00022
Radulović D, Božović D, Terzić A, Trumić MS, Simić V, Andrić L. A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path. in Journal of Ceramic Science and Technology. 2017;8(2):295-304.
doi:10.4416/JCST2017-00022 .
Radulović, Dragan, Božović, D., Terzić, Anja, Trumić, M. S., Simić, Vladimir, Andrić, Ljubiša, "A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path" in Journal of Ceramic Science and Technology, 8, no. 2 (2017):295-304,
https://doi.org/10.4416/JCST2017-00022 . .

The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites

Radulović, Dragan; Terzić, Anja; Pezo, Lato; Andrić, Ljubiša; Grigorova, Irena

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2017)

TY  - JOUR
AU  - Radulović, Dragan
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Andrić, Ljubiša
AU  - Grigorova, Irena
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/309
AB  - The limestone, as an economically sustainable and easily available basic raw material, is frequently utilized in the building industry for resolving of the environmental protection issues. The limestone is incorporated in a cementitious system either by grinding with cement clinker, or by blending with the binder during concrete production. The employing of powdery limestone as partial cement replacement gives the construction composites with properties comparable to that of conventional concrete. The study of limestone thermal behavior and its chemistry is crucial for the prognosis of the designed composites properties. In this work, the instrumental techniques (atomic emission spectroscopy, differential thermal and thermo-gravimetric analysis, Fourier transform infrared spectroscopy) and the Principal component analysis were employed to discriminate and classify 22 limestone types. The PCA statistical method, as a means of spectra and experimental data fingerprinting, grouped the samples in a multi-dimensional factor space producing four graphical prognosis - one for each instrumental method. DTA/TG peak values varied the most in a short range between 830-870 degrees C, while FTIR spectra showed the highest diversity in the 867-887 cm(-1) and 1237-1647 cm(-1) ranges. This research was governed by an idea to reveal whether it is possible to differentiate various limestone types and to predict the possibility of their employment in construction composites on the basis of the results of instrumental and mathematical analyses.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites
EP  - 261
IS  - 3
SP  - 247
VL  - 49
DO  - 10.2298/SOS1703247R
ER  - 
@article{
author = "Radulović, Dragan and Terzić, Anja and Pezo, Lato and Andrić, Ljubiša and Grigorova, Irena",
year = "2017",
abstract = "The limestone, as an economically sustainable and easily available basic raw material, is frequently utilized in the building industry for resolving of the environmental protection issues. The limestone is incorporated in a cementitious system either by grinding with cement clinker, or by blending with the binder during concrete production. The employing of powdery limestone as partial cement replacement gives the construction composites with properties comparable to that of conventional concrete. The study of limestone thermal behavior and its chemistry is crucial for the prognosis of the designed composites properties. In this work, the instrumental techniques (atomic emission spectroscopy, differential thermal and thermo-gravimetric analysis, Fourier transform infrared spectroscopy) and the Principal component analysis were employed to discriminate and classify 22 limestone types. The PCA statistical method, as a means of spectra and experimental data fingerprinting, grouped the samples in a multi-dimensional factor space producing four graphical prognosis - one for each instrumental method. DTA/TG peak values varied the most in a short range between 830-870 degrees C, while FTIR spectra showed the highest diversity in the 867-887 cm(-1) and 1237-1647 cm(-1) ranges. This research was governed by an idea to reveal whether it is possible to differentiate various limestone types and to predict the possibility of their employment in construction composites on the basis of the results of instrumental and mathematical analyses.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites",
pages = "261-247",
number = "3",
volume = "49",
doi = "10.2298/SOS1703247R"
}
Radulović, D., Terzić, A., Pezo, L., Andrić, L.,& Grigorova, I.. (2017). The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(3), 247-261.
https://doi.org/10.2298/SOS1703247R
Radulović D, Terzić A, Pezo L, Andrić L, Grigorova I. The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites. in Science of Sintering. 2017;49(3):247-261.
doi:10.2298/SOS1703247R .
Radulović, Dragan, Terzić, Anja, Pezo, Lato, Andrić, Ljubiša, Grigorova, Irena, "The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites" in Science of Sintering, 49, no. 3 (2017):247-261,
https://doi.org/10.2298/SOS1703247R . .
6
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7

Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill

Andrić, Ljubiša; Terzić, Anja; Petrov, Milan; Stojanović, Jovica; Kostović, Milena

(Elsevier, Amsterdam, 2015)

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Petrov, Milan
AU  - Stojanović, Jovica
AU  - Kostović, Milena
PY  - 2015
UR  - http://rims.institutims.rs/handle/123456789/272
AB  - The aim of this investigation was to establish the optimal processing parameters of the comminuted phosphate grain mixture mechanical treatment by monitoring and evaluating the activated product characteristics. An ultra-centrifugal mill with a peripheral comminuting path was used as activator in the experiment. A mathematical model based on the theoretical principles of the grain mixture mechanical processing was applied in order to characterize the phosphate activation procedure. As the energy conversion that takes place by the interaction mill-material during activation is recorded on the processed phosphate grains, the increase in potential energy of the activated grains was measured by means of an automatic grain counter. Following the operating hypothesis of the automatic grain counter, the energy conversion and the properties of phosphate grains induced by mechanical force were monitored and expressed in the form of the grain inertia change. The phosphate ore grain mixture used in the experiment was thoroughly analyzed, particularly in its activated state. Analytically obtained results were supported by X-ray diffraction analysis for identification of crystalline phases and change in crystallinity, and SEM microphotography of initial and activated phosphate grains. Diverse comparison analyses disclosed that the optimal set of activation process parameters could reduce the negative effect of phosphate sample immanent properties on the final score and furthermore enhance the material reactivity.
PB  - Elsevier, Amsterdam
T2  - International Journal of Mineral Processing
T1  - Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill
EP  - 11
SP  - 1
VL  - 143
DO  - 10.1016/j.minpro.2015.08.005
ER  - 
@article{
author = "Andrić, Ljubiša and Terzić, Anja and Petrov, Milan and Stojanović, Jovica and Kostović, Milena",
year = "2015",
abstract = "The aim of this investigation was to establish the optimal processing parameters of the comminuted phosphate grain mixture mechanical treatment by monitoring and evaluating the activated product characteristics. An ultra-centrifugal mill with a peripheral comminuting path was used as activator in the experiment. A mathematical model based on the theoretical principles of the grain mixture mechanical processing was applied in order to characterize the phosphate activation procedure. As the energy conversion that takes place by the interaction mill-material during activation is recorded on the processed phosphate grains, the increase in potential energy of the activated grains was measured by means of an automatic grain counter. Following the operating hypothesis of the automatic grain counter, the energy conversion and the properties of phosphate grains induced by mechanical force were monitored and expressed in the form of the grain inertia change. The phosphate ore grain mixture used in the experiment was thoroughly analyzed, particularly in its activated state. Analytically obtained results were supported by X-ray diffraction analysis for identification of crystalline phases and change in crystallinity, and SEM microphotography of initial and activated phosphate grains. Diverse comparison analyses disclosed that the optimal set of activation process parameters could reduce the negative effect of phosphate sample immanent properties on the final score and furthermore enhance the material reactivity.",
publisher = "Elsevier, Amsterdam",
journal = "International Journal of Mineral Processing",
title = "Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill",
pages = "11-1",
volume = "143",
doi = "10.1016/j.minpro.2015.08.005"
}
Andrić, L., Terzić, A., Petrov, M., Stojanović, J.,& Kostović, M.. (2015). Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill. in International Journal of Mineral Processing
Elsevier, Amsterdam., 143, 1-11.
https://doi.org/10.1016/j.minpro.2015.08.005
Andrić L, Terzić A, Petrov M, Stojanović J, Kostović M. Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill. in International Journal of Mineral Processing. 2015;143:1-11.
doi:10.1016/j.minpro.2015.08.005 .
Andrić, Ljubiša, Terzić, Anja, Petrov, Milan, Stojanović, Jovica, Kostović, Milena, "Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill" in International Journal of Mineral Processing, 143 (2015):1-11,
https://doi.org/10.1016/j.minpro.2015.08.005 . .
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Towards sustainable solutions for fly ash reapplication through mechanical activation

Terzić, Anja; Andrić, Ljubiša; Petrov, Milan; Miličić, Ljiljana; Radojević, Zagorka; Pavlović, Ljubica

(2014)

TY  - CONF
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Petrov, Milan
AU  - Miličić, Ljiljana
AU  - Radojević, Zagorka
AU  - Pavlović, Ljubica
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/689
AB  - The aim of investigation was to find sustainable solution for coal fly ash reapplication by increasing its reactivity through mechano-activation. For obtaining complete insight into activation process an understanding of theoretical principles of activator operation is necessary. The vibratory mill was used in experiments. The characteristics of activated ash and possibility of grain inertia measurement by automatic grain counter were analyzed. Following proposed AGC operating hypothesis, energy and properties of ash grains induced by mechanical force were expressed as grain inertia change. The ash used in experiment was thoroughly analyzed by XRD and SEM methods. The final result was establishing of the upper limit of activation period.
C3  - 9th Symposium “Recycling Technologies and Sustainable Development” with international participation, Proceedings
T1  - Towards sustainable solutions for fly ash reapplication through mechanical activation
EP  - 173
SP  - 167
UR  - https://hdl.handle.net/21.15107/rcub_rims_689
ER  - 
@conference{
author = "Terzić, Anja and Andrić, Ljubiša and Petrov, Milan and Miličić, Ljiljana and Radojević, Zagorka and Pavlović, Ljubica",
year = "2014",
abstract = "The aim of investigation was to find sustainable solution for coal fly ash reapplication by increasing its reactivity through mechano-activation. For obtaining complete insight into activation process an understanding of theoretical principles of activator operation is necessary. The vibratory mill was used in experiments. The characteristics of activated ash and possibility of grain inertia measurement by automatic grain counter were analyzed. Following proposed AGC operating hypothesis, energy and properties of ash grains induced by mechanical force were expressed as grain inertia change. The ash used in experiment was thoroughly analyzed by XRD and SEM methods. The final result was establishing of the upper limit of activation period.",
journal = "9th Symposium “Recycling Technologies and Sustainable Development” with international participation, Proceedings",
title = "Towards sustainable solutions for fly ash reapplication through mechanical activation",
pages = "173-167",
url = "https://hdl.handle.net/21.15107/rcub_rims_689"
}
Terzić, A., Andrić, L., Petrov, M., Miličić, L., Radojević, Z.,& Pavlović, L.. (2014). Towards sustainable solutions for fly ash reapplication through mechanical activation. in 9th Symposium “Recycling Technologies and Sustainable Development” with international participation, Proceedings, 167-173.
https://hdl.handle.net/21.15107/rcub_rims_689
Terzić A, Andrić L, Petrov M, Miličić L, Radojević Z, Pavlović L. Towards sustainable solutions for fly ash reapplication through mechanical activation. in 9th Symposium “Recycling Technologies and Sustainable Development” with international participation, Proceedings. 2014;:167-173.
https://hdl.handle.net/21.15107/rcub_rims_689 .
Terzić, Anja, Andrić, Ljubiša, Petrov, Milan, Miličić, Ljiljana, Radojević, Zagorka, Pavlović, Ljubica, "Towards sustainable solutions for fly ash reapplication through mechanical activation" in 9th Symposium “Recycling Technologies and Sustainable Development” with international participation, Proceedings (2014):167-173,
https://hdl.handle.net/21.15107/rcub_rims_689 .

Investigation of high temperature behavior and sintering mechanism of fly ash based concretes

Terzić, Anja; Andrić, Ljubiša; Petrov, Milan; Radojević, Zagorka; Miličić, Ljiljana

(Procema SA, 2014)

TY  - JOUR
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Petrov, Milan
AU  - Radojević, Zagorka
AU  - Miličić, Ljiljana
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/259
AB  - Four types of refractory concretes were studied at various temperatures ranging from ambient to adopted maximal 1400 degrees C. The concretes had same matrix composition: K concretes were based on corundum aggregate; B concretes were based on bauxite aggregate and chamotte filler; while K2 and B2 concretes had 30 % of fly ash replacement in bonding agent. Fly ash was mechanically activated by means of planetary ball mill. Samples were dried at 110 degrees C during 24 hours to create standard specimens. Afterwards, the samples were preburned at 1100 degrees C and subsequently subjected to compressive uniaxial creep test conducted at various temperatures (1200, 1300 and 1400 degrees C). Thermal behavior was also investigated by dilatometry analysis starting from room temperature up to 1400 degrees C. The evolution of the refractory concretes behavior from quasi-brittle to viscoplastic was investigated and correlated to their microstructure evolution induced by sintering process. The influence of the burning temperature and procedure duration on the concretes behavior is also discussed. Creep test and dilatometry analysis helped in defining of the sintering mechanism and its parameters, and additionally explained deformation nature of the refractory concretes.
PB  - Procema SA
T2  - Revista Romana de Materiale/ Romanian Journal of Materials
T1  - Investigation of high temperature behavior and sintering mechanism of fly ash based concretes
EP  - 224
IS  - 3
SP  - 213
VL  - 44
UR  - https://hdl.handle.net/21.15107/rcub_rims_259
ER  - 
@article{
author = "Terzić, Anja and Andrić, Ljubiša and Petrov, Milan and Radojević, Zagorka and Miličić, Ljiljana",
year = "2014",
abstract = "Four types of refractory concretes were studied at various temperatures ranging from ambient to adopted maximal 1400 degrees C. The concretes had same matrix composition: K concretes were based on corundum aggregate; B concretes were based on bauxite aggregate and chamotte filler; while K2 and B2 concretes had 30 % of fly ash replacement in bonding agent. Fly ash was mechanically activated by means of planetary ball mill. Samples were dried at 110 degrees C during 24 hours to create standard specimens. Afterwards, the samples were preburned at 1100 degrees C and subsequently subjected to compressive uniaxial creep test conducted at various temperatures (1200, 1300 and 1400 degrees C). Thermal behavior was also investigated by dilatometry analysis starting from room temperature up to 1400 degrees C. The evolution of the refractory concretes behavior from quasi-brittle to viscoplastic was investigated and correlated to their microstructure evolution induced by sintering process. The influence of the burning temperature and procedure duration on the concretes behavior is also discussed. Creep test and dilatometry analysis helped in defining of the sintering mechanism and its parameters, and additionally explained deformation nature of the refractory concretes.",
publisher = "Procema SA",
journal = "Revista Romana de Materiale/ Romanian Journal of Materials",
title = "Investigation of high temperature behavior and sintering mechanism of fly ash based concretes",
pages = "224-213",
number = "3",
volume = "44",
url = "https://hdl.handle.net/21.15107/rcub_rims_259"
}
Terzić, A., Andrić, L., Petrov, M., Radojević, Z.,& Miličić, L.. (2014). Investigation of high temperature behavior and sintering mechanism of fly ash based concretes. in Revista Romana de Materiale/ Romanian Journal of Materials
Procema SA., 44(3), 213-224.
https://hdl.handle.net/21.15107/rcub_rims_259
Terzić A, Andrić L, Petrov M, Radojević Z, Miličić L. Investigation of high temperature behavior and sintering mechanism of fly ash based concretes. in Revista Romana de Materiale/ Romanian Journal of Materials. 2014;44(3):213-224.
https://hdl.handle.net/21.15107/rcub_rims_259 .
Terzić, Anja, Andrić, Ljubiša, Petrov, Milan, Radojević, Zagorka, Miličić, Ljiljana, "Investigation of high temperature behavior and sintering mechanism of fly ash based concretes" in Revista Romana de Materiale/ Romanian Journal of Materials, 44, no. 3 (2014):213-224,
https://hdl.handle.net/21.15107/rcub_rims_259 .
2
3

Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill

Andrić, Ljubiša; Terzić, Anja; Aćimović-Pavlović, Zagorka; Pavlović, Ljubica; Petrov, Milan

(Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw, 2014)

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Aćimović-Pavlović, Zagorka
AU  - Pavlović, Ljubica
AU  - Petrov, Milan
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/257
AB  - The efficiency of talc mechanical activation by means of two different mechano-activators centrifugal and attrition mill is investigated in this study and the comparative analysis of the characteristics of obtained talc powders is presented. A new approach for obtaining high-grade talc concentrate with low Fe2O3 content is achieved through effect of mechanical activation of talc accompanied by hydrometallurgical process. The applied mechanical activation process conditions of ultra-centrifugal mill were defined by number of rotor revolutions, sieve mesh size, and current intensity. These operating parameters of the ultra-centrifugal mill were variable. Ultra fine grinding of talc in attrition mill (attritor) was carried out in various time intervals - from 5 to 15 min. The following technological parameters of the mechanical activation were monitored: time of mechanical activation, circumferential rotor speed, capacity of ultra-centrifugal mill, and specific energy consumption. The investigation was based on a kinetic model. The structure and behavior of activated samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis, and differential thermal analysis (DTA).
PB  - Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw
T2  - Physicochemical Problems of Mineral Processing
T1  - Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill
EP  - 452
IS  - 2
SP  - 433
VL  - 50
DO  - 10.5277/ppmp140202
ER  - 
@article{
author = "Andrić, Ljubiša and Terzić, Anja and Aćimović-Pavlović, Zagorka and Pavlović, Ljubica and Petrov, Milan",
year = "2014",
abstract = "The efficiency of talc mechanical activation by means of two different mechano-activators centrifugal and attrition mill is investigated in this study and the comparative analysis of the characteristics of obtained talc powders is presented. A new approach for obtaining high-grade talc concentrate with low Fe2O3 content is achieved through effect of mechanical activation of talc accompanied by hydrometallurgical process. The applied mechanical activation process conditions of ultra-centrifugal mill were defined by number of rotor revolutions, sieve mesh size, and current intensity. These operating parameters of the ultra-centrifugal mill were variable. Ultra fine grinding of talc in attrition mill (attritor) was carried out in various time intervals - from 5 to 15 min. The following technological parameters of the mechanical activation were monitored: time of mechanical activation, circumferential rotor speed, capacity of ultra-centrifugal mill, and specific energy consumption. The investigation was based on a kinetic model. The structure and behavior of activated samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis, and differential thermal analysis (DTA).",
publisher = "Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw",
journal = "Physicochemical Problems of Mineral Processing",
title = "Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill",
pages = "452-433",
number = "2",
volume = "50",
doi = "10.5277/ppmp140202"
}
Andrić, L., Terzić, A., Aćimović-Pavlović, Z., Pavlović, L.,& Petrov, M.. (2014). Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill. in Physicochemical Problems of Mineral Processing
Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw., 50(2), 433-452.
https://doi.org/10.5277/ppmp140202
Andrić L, Terzić A, Aćimović-Pavlović Z, Pavlović L, Petrov M. Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill. in Physicochemical Problems of Mineral Processing. 2014;50(2):433-452.
doi:10.5277/ppmp140202 .
Andrić, Ljubiša, Terzić, Anja, Aćimović-Pavlović, Zagorka, Pavlović, Ljubica, Petrov, Milan, "Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill" in Physicochemical Problems of Mineral Processing, 50, no. 2 (2014):433-452,
https://doi.org/10.5277/ppmp140202 . .
9
12

Comparative kinetic study of mechanical activation process of mica and talc for industrial application

Andrić, Ljubiša; Terzić, Anja; Aćimović-Pavlović, Zagorka; Pavlović, Ljubica; Petrov, Milan

(Elsevier Sci Ltd, Oxford, 2014)

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Aćimović-Pavlović, Zagorka
AU  - Pavlović, Ljubica
AU  - Petrov, Milan
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/255
AB  - Mica and talc have wide areas of application as a raw material in a number of industrial branches. Mechanically activated mica has specific applications such as: capacitors, insulators, and pearlescent pigments. Talc is widely used as either a basic raw material or as filler. This paper presents a comparative analysis of mechanically activated samples of mica and talc in ultra-centrifugal mechano-activator "Retsch ZM-1". The following mechano-activator parameters were variable: number of rotor revolutions (rpm); sieve mesh size (mu m); current intensity (A). In addition, the following parameters were monitored: duration of mechanical activation, t (min); circumferential rotor speed, v (m/s); capacity of mechano-activator, Q (kg/h); and specific energy consumption, W-e (kW h/t). It was observed that effect of mechanical activation of mica and talc increased with an increase of the load and rotor revolution of ultra-centrifugal mechano-activator. Both mica and talc were successfully treated by mechanical activation procedure. In the processing of mica, mechanical activation is suggested to be applied as a post-treatment, and in the talc processing as a pre-treatment, as the high quality talc is obtained by means of hydrometallurgical concentration method.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Comparative kinetic study of mechanical activation process of mica and talc for industrial application
EP  - 190
SP  - 181
VL  - 59
DO  - 10.1016/j.compositesb.2013.12.003
ER  - 
@article{
author = "Andrić, Ljubiša and Terzić, Anja and Aćimović-Pavlović, Zagorka and Pavlović, Ljubica and Petrov, Milan",
year = "2014",
abstract = "Mica and talc have wide areas of application as a raw material in a number of industrial branches. Mechanically activated mica has specific applications such as: capacitors, insulators, and pearlescent pigments. Talc is widely used as either a basic raw material or as filler. This paper presents a comparative analysis of mechanically activated samples of mica and talc in ultra-centrifugal mechano-activator "Retsch ZM-1". The following mechano-activator parameters were variable: number of rotor revolutions (rpm); sieve mesh size (mu m); current intensity (A). In addition, the following parameters were monitored: duration of mechanical activation, t (min); circumferential rotor speed, v (m/s); capacity of mechano-activator, Q (kg/h); and specific energy consumption, W-e (kW h/t). It was observed that effect of mechanical activation of mica and talc increased with an increase of the load and rotor revolution of ultra-centrifugal mechano-activator. Both mica and talc were successfully treated by mechanical activation procedure. In the processing of mica, mechanical activation is suggested to be applied as a post-treatment, and in the talc processing as a pre-treatment, as the high quality talc is obtained by means of hydrometallurgical concentration method.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Comparative kinetic study of mechanical activation process of mica and talc for industrial application",
pages = "190-181",
volume = "59",
doi = "10.1016/j.compositesb.2013.12.003"
}
Andrić, L., Terzić, A., Aćimović-Pavlović, Z., Pavlović, L.,& Petrov, M.. (2014). Comparative kinetic study of mechanical activation process of mica and talc for industrial application. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 59, 181-190.
https://doi.org/10.1016/j.compositesb.2013.12.003
Andrić L, Terzić A, Aćimović-Pavlović Z, Pavlović L, Petrov M. Comparative kinetic study of mechanical activation process of mica and talc for industrial application. in Composites Part B-Engineering. 2014;59:181-190.
doi:10.1016/j.compositesb.2013.12.003 .
Andrić, Ljubiša, Terzić, Anja, Aćimović-Pavlović, Zagorka, Pavlović, Ljubica, Petrov, Milan, "Comparative kinetic study of mechanical activation process of mica and talc for industrial application" in Composites Part B-Engineering, 59 (2014):181-190,
https://doi.org/10.1016/j.compositesb.2013.12.003 . .
26
20
27

Assessment of intensive grinding effects on alumina as refractory compound: Acceleration of gamma to alpha phase transformation mechanism

Terzić, Anja; Andrić, Ljubiša; Mitić, Vojislav

(Elsevier Sci Ltd, Oxford, 2014)

TY  - JOUR
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Mitić, Vojislav
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/243
AB  - In this study, the feasibility of alumina phase transition enhancement by mechanical activation was conducted. It was showed that the milling environment plays an important role on the physical, chemical and thermal behavior of the alumina powder utilized as refractory component material. The aim of the investigation was to increase the reactivity of the starting gamma-Al2O3 by mechanical treatment in two types of high-energy activators - vibratory disc mill and vibratory ball mill. In continuation, the decrease of the subsequent sintering temperature as well as the treatment duration would be induced by making the transition into final thermo-stable alpha-Al2O3 modification easier and faster. Full factorial experiment was conducted and the results were analyzed by the proposed mathematical model in order to understand the effects of the activation process variables on the amount and physical characteristics of the synthesized (activated and subsequently thermally treated) product and to establish the optimal activation period. As the result of the analysis, operation parameters of the activator and activation period were found to be the most important factors. The initial gamma-Al2O3 and synthesized alpha-Al2O3 were thoroughly analyzed by DTA, XRD, IR and SEM methods. Thermal behavior of gamma and alpha-modification were studied by differential thermal analysis conducted in the same environment, under same heating rates. X-ray diffraction analysis gave reliable identification of the crystal phases and changes in crystallinity of treated alumina. Based on XRD peak intensity measurements, the gamma-Al2O3 almost completely passed (95%) into alpha-Al2O3 after 180 min of activation in vibratory ball mill and subsequent thermal treatment (2 h/1200 degrees C). SEM microphotographs with accompanying image analysis PC program highlighted changes in size and shape of particles of initial and synthesized Al2O3. Synthesized Al2O3 exquisite thermal behavior characteristic for refractory compounds, demonstrated that it is possible to obtain alpha-alumina at lower transformation temperatures in shorter time intervals by applying mechanical activation.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Assessment of intensive grinding effects on alumina as refractory compound: Acceleration of gamma to alpha phase transformation mechanism
EP  - 14863
IS  - 9
SP  - 14851
VL  - 40
DO  - 10.1016/j.ceramint.2014.06.080
ER  - 
@article{
author = "Terzić, Anja and Andrić, Ljubiša and Mitić, Vojislav",
year = "2014",
abstract = "In this study, the feasibility of alumina phase transition enhancement by mechanical activation was conducted. It was showed that the milling environment plays an important role on the physical, chemical and thermal behavior of the alumina powder utilized as refractory component material. The aim of the investigation was to increase the reactivity of the starting gamma-Al2O3 by mechanical treatment in two types of high-energy activators - vibratory disc mill and vibratory ball mill. In continuation, the decrease of the subsequent sintering temperature as well as the treatment duration would be induced by making the transition into final thermo-stable alpha-Al2O3 modification easier and faster. Full factorial experiment was conducted and the results were analyzed by the proposed mathematical model in order to understand the effects of the activation process variables on the amount and physical characteristics of the synthesized (activated and subsequently thermally treated) product and to establish the optimal activation period. As the result of the analysis, operation parameters of the activator and activation period were found to be the most important factors. The initial gamma-Al2O3 and synthesized alpha-Al2O3 were thoroughly analyzed by DTA, XRD, IR and SEM methods. Thermal behavior of gamma and alpha-modification were studied by differential thermal analysis conducted in the same environment, under same heating rates. X-ray diffraction analysis gave reliable identification of the crystal phases and changes in crystallinity of treated alumina. Based on XRD peak intensity measurements, the gamma-Al2O3 almost completely passed (95%) into alpha-Al2O3 after 180 min of activation in vibratory ball mill and subsequent thermal treatment (2 h/1200 degrees C). SEM microphotographs with accompanying image analysis PC program highlighted changes in size and shape of particles of initial and synthesized Al2O3. Synthesized Al2O3 exquisite thermal behavior characteristic for refractory compounds, demonstrated that it is possible to obtain alpha-alumina at lower transformation temperatures in shorter time intervals by applying mechanical activation.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Assessment of intensive grinding effects on alumina as refractory compound: Acceleration of gamma to alpha phase transformation mechanism",
pages = "14863-14851",
number = "9",
volume = "40",
doi = "10.1016/j.ceramint.2014.06.080"
}
Terzić, A., Andrić, L.,& Mitić, V.. (2014). Assessment of intensive grinding effects on alumina as refractory compound: Acceleration of gamma to alpha phase transformation mechanism. in Ceramics International
Elsevier Sci Ltd, Oxford., 40(9), 14851-14863.
https://doi.org/10.1016/j.ceramint.2014.06.080
Terzić A, Andrić L, Mitić V. Assessment of intensive grinding effects on alumina as refractory compound: Acceleration of gamma to alpha phase transformation mechanism. in Ceramics International. 2014;40(9):14851-14863.
doi:10.1016/j.ceramint.2014.06.080 .
Terzić, Anja, Andrić, Ljubiša, Mitić, Vojislav, "Assessment of intensive grinding effects on alumina as refractory compound: Acceleration of gamma to alpha phase transformation mechanism" in Ceramics International, 40, no. 9 (2014):14851-14863,
https://doi.org/10.1016/j.ceramint.2014.06.080 . .
12
9
13

A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill

Andrić, Ljubiša; Terzić, Anja; Aćimović-Pavlović, Zagorka; Trumić, Milan; Petrov, Milan; Pavlović, Ljubica

(Hindawi Ltd, London, 2013)

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Aćimović-Pavlović, Zagorka
AU  - Trumić, Milan
AU  - Petrov, Milan
AU  - Pavlović, Ljubica
PY  - 2013
UR  - http://rims.institutims.rs/handle/123456789/220
AB  - This paper presents results of the research of micronization grinding of dry mica in a planetary ball mill. Investigation was conducted in order to improve the quality and to obtain clearly defined properties and characteristics of mica powder. The micronization grinding of dry mica was performed in four time periods: 30, 60, 120, and 360 minutes. The micronized powder was investigated by means of differential thermal and thermogravimetric analyses, analysis of the degree of micronization, the specific surface area analysis, and X-ray diffraction analysis. The achieved results pointed out that dry mica micronization grinding which exceeds 360 minutes is recommended for this type of mill. However, it was also shown that the micronized mica produced by means of planetary ball mill after extra long periods of micronization grinding can pass into amorphous state.
PB  - Hindawi Ltd, London
T2  - Advances in Materials Science and Engineering
T1  - A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill
VL  - 2013
DO  - 10.1155/2013/543857
ER  - 
@article{
author = "Andrić, Ljubiša and Terzić, Anja and Aćimović-Pavlović, Zagorka and Trumić, Milan and Petrov, Milan and Pavlović, Ljubica",
year = "2013",
abstract = "This paper presents results of the research of micronization grinding of dry mica in a planetary ball mill. Investigation was conducted in order to improve the quality and to obtain clearly defined properties and characteristics of mica powder. The micronization grinding of dry mica was performed in four time periods: 30, 60, 120, and 360 minutes. The micronized powder was investigated by means of differential thermal and thermogravimetric analyses, analysis of the degree of micronization, the specific surface area analysis, and X-ray diffraction analysis. The achieved results pointed out that dry mica micronization grinding which exceeds 360 minutes is recommended for this type of mill. However, it was also shown that the micronized mica produced by means of planetary ball mill after extra long periods of micronization grinding can pass into amorphous state.",
publisher = "Hindawi Ltd, London",
journal = "Advances in Materials Science and Engineering",
title = "A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill",
volume = "2013",
doi = "10.1155/2013/543857"
}
Andrić, L., Terzić, A., Aćimović-Pavlović, Z., Trumić, M., Petrov, M.,& Pavlović, L.. (2013). A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill. in Advances in Materials Science and Engineering
Hindawi Ltd, London., 2013.
https://doi.org/10.1155/2013/543857
Andrić L, Terzić A, Aćimović-Pavlović Z, Trumić M, Petrov M, Pavlović L. A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill. in Advances in Materials Science and Engineering. 2013;2013.
doi:10.1155/2013/543857 .
Andrić, Ljubiša, Terzić, Anja, Aćimović-Pavlović, Zagorka, Trumić, Milan, Petrov, Milan, Pavlović, Ljubica, "A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill" in Advances in Materials Science and Engineering, 2013 (2013),
https://doi.org/10.1155/2013/543857 . .
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8