Effect оf delamination оn physico-chemical properties оf kaolin
Authors
Mihajlović, SlavicaVlahović, Milica
Vušović, Nenad
Đorđević, Nataša G.
Jovanović, Marina N.
Article (Published version)
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Show full item recordAbstract
To provide the quality required for its use, raw kaolin must be subjected to certain processing procedures like delamination which is applied to the layered structure materials. The aim of this research is to determine the possibility of performing delamination in the extruder and to estimate the effects of this process on the physico-chemical properties of kaolin. The results showed that delamination can be efficiently realized in the extruder by shearing densely packed layers under the influence of friction force and added Na2 CO3 electrolyte. The crystal structure of the system was thus disrupted. This was confirmed by the Hinckley index (HI) decrease and by the dilatometric characteristics changes during heating. The particle size was reduced and, furthermore, new adsorption centers were formed, which led to an increase in the total cation exchange capacity (CEC). The plasticity of kaolin decreased with the increasing delamination degree, as well as the amount of water required for... plastic processing, which is favorable in drying ceramic products.
Keywords:
Delamination / Dilatometric properties / Hinckley index / Kaolin / PlasticitySource:
Science of Sintering, 2021, 53, 2, 253-Publisher:
- International Institute for the Science of Sintering (IISS)
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200023 (Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade) (RS-200023)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200131 (University of Belgrade, Technical Faculty, Bor) (RS-200131)
DOI: 10.2298/SOS2102253M
ISSN: 0350-820X
WoS: 000691836600009
Scopus: 2-s2.0-85110477193
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Institution/Community
IHTMTY - JOUR AU - Mihajlović, Slavica AU - Vlahović, Milica AU - Vušović, Nenad AU - Đorđević, Nataša G. AU - Jovanović, Marina N. PY - 2021 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4754 AB - To provide the quality required for its use, raw kaolin must be subjected to certain processing procedures like delamination which is applied to the layered structure materials. The aim of this research is to determine the possibility of performing delamination in the extruder and to estimate the effects of this process on the physico-chemical properties of kaolin. The results showed that delamination can be efficiently realized in the extruder by shearing densely packed layers under the influence of friction force and added Na2 CO3 electrolyte. The crystal structure of the system was thus disrupted. This was confirmed by the Hinckley index (HI) decrease and by the dilatometric characteristics changes during heating. The particle size was reduced and, furthermore, new adsorption centers were formed, which led to an increase in the total cation exchange capacity (CEC). The plasticity of kaolin decreased with the increasing delamination degree, as well as the amount of water required for plastic processing, which is favorable in drying ceramic products. PB - International Institute for the Science of Sintering (IISS) T2 - Science of Sintering T1 - Effect оf delamination оn physico-chemical properties оf kaolin VL - 53 IS - 2 SP - 253 SP - 266 DO - 10.2298/SOS2102253M ER -
@article{ author = "Mihajlović, Slavica and Vlahović, Milica and Vušović, Nenad and Đorđević, Nataša G. and Jovanović, Marina N.", year = "2021", abstract = "To provide the quality required for its use, raw kaolin must be subjected to certain processing procedures like delamination which is applied to the layered structure materials. The aim of this research is to determine the possibility of performing delamination in the extruder and to estimate the effects of this process on the physico-chemical properties of kaolin. The results showed that delamination can be efficiently realized in the extruder by shearing densely packed layers under the influence of friction force and added Na2 CO3 electrolyte. The crystal structure of the system was thus disrupted. This was confirmed by the Hinckley index (HI) decrease and by the dilatometric characteristics changes during heating. The particle size was reduced and, furthermore, new adsorption centers were formed, which led to an increase in the total cation exchange capacity (CEC). The plasticity of kaolin decreased with the increasing delamination degree, as well as the amount of water required for plastic processing, which is favorable in drying ceramic products.", publisher = "International Institute for the Science of Sintering (IISS)", journal = "Science of Sintering", title = "Effect оf delamination оn physico-chemical properties оf kaolin", volume = "53", number = "2", pages = "253-266", doi = "10.2298/SOS2102253M" }
Mihajlović, S., Vlahović, M., Vušović, N., Đorđević, N. G.,& Jovanović, M. N.. (2021). Effect оf delamination оn physico-chemical properties оf kaolin. in Science of Sintering International Institute for the Science of Sintering (IISS)., 53(2), 253. https://doi.org/10.2298/SOS2102253M
Mihajlović S, Vlahović M, Vušović N, Đorđević NG, Jovanović MN. Effect оf delamination оn physico-chemical properties оf kaolin. in Science of Sintering. 2021;53(2):253. doi:10.2298/SOS2102253M .
Mihajlović, Slavica, Vlahović, Milica, Vušović, Nenad, Đorđević, Nataša G., Jovanović, Marina N., "Effect оf delamination оn physico-chemical properties оf kaolin" in Science of Sintering, 53, no. 2 (2021):253, https://doi.org/10.2298/SOS2102253M . .