Dissolution of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures
Аутори
Nikolić, JelenaTopalović, Vladimir
Đošić, Marija
Savić, Veljko
Obradović, Milena
Matijašević, Srđan
Grujić, Snežana
Остала ауторства
Sokić, MiroslavMarković, Branislav
Manojlović, Vaso
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
This paper shows the dissolution behavior of polyphosphate glass in demineralized water and 2% citric acid solution at temperatures: 15, 20, 30, 37 and 50 °C. The influence of the solvent type on the diffusion coefficients of the modifying cations, under static conditions, is also presented. The diffusion coefficients, determined from concentration profiles of the modifying cations, are calculated to be in the range of 0.27 to 350x10-14 m2/h for dissolution in demineralized water, and in the range of 3.6 to 148x10-12 m2/h for the dissolution in 2% citric acid solution. The values of activation energy of cations diffusion in demineralized water are in the range from 68.32 to 105.41 kJ/mol, while for 2% citric acid solution they are in the range from 39.28 to 55.34 kJ/mol.
Кључне речи:
polyphosphate glass / diffusion coefficient / dissolutionИзвор:
5th Metallurgical & Materials Engineering Congress of South-East Europe, 2023, 231-236Издавач:
- Belgrade : Association of Metallurgical Engineers of Serbia
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200023 (Институт за технологију нуклеарних и других минералних сировина - ИТНМС, Београд) (RS-MESTD-inst-2020-200023)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
Институција/група
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - CONF AU - Nikolić, Jelena AU - Topalović, Vladimir AU - Đošić, Marija AU - Savić, Veljko AU - Obradović, Milena AU - Matijašević, Srđan AU - Grujić, Snežana PY - 2023 UR - https://ritnms.itnms.ac.rs/handle/123456789/792 AB - This paper shows the dissolution behavior of polyphosphate glass in demineralized water and 2% citric acid solution at temperatures: 15, 20, 30, 37 and 50 °C. The influence of the solvent type on the diffusion coefficients of the modifying cations, under static conditions, is also presented. The diffusion coefficients, determined from concentration profiles of the modifying cations, are calculated to be in the range of 0.27 to 350x10-14 m2/h for dissolution in demineralized water, and in the range of 3.6 to 148x10-12 m2/h for the dissolution in 2% citric acid solution. The values of activation energy of cations diffusion in demineralized water are in the range from 68.32 to 105.41 kJ/mol, while for 2% citric acid solution they are in the range from 39.28 to 55.34 kJ/mol. PB - Belgrade : Association of Metallurgical Engineers of Serbia C3 - 5th Metallurgical & Materials Engineering Congress of South-East Europe T1 - Dissolution of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures EP - 236 SP - 231 ER -
@conference{ author = "Nikolić, Jelena and Topalović, Vladimir and Đošić, Marija and Savić, Veljko and Obradović, Milena and Matijašević, Srđan and Grujić, Snežana", year = "2023", abstract = "This paper shows the dissolution behavior of polyphosphate glass in demineralized water and 2% citric acid solution at temperatures: 15, 20, 30, 37 and 50 °C. The influence of the solvent type on the diffusion coefficients of the modifying cations, under static conditions, is also presented. The diffusion coefficients, determined from concentration profiles of the modifying cations, are calculated to be in the range of 0.27 to 350x10-14 m2/h for dissolution in demineralized water, and in the range of 3.6 to 148x10-12 m2/h for the dissolution in 2% citric acid solution. The values of activation energy of cations diffusion in demineralized water are in the range from 68.32 to 105.41 kJ/mol, while for 2% citric acid solution they are in the range from 39.28 to 55.34 kJ/mol.", publisher = "Belgrade : Association of Metallurgical Engineers of Serbia", journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe", title = "Dissolution of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures", pages = "236-231" }
Nikolić, J., Topalović, V., Đošić, M., Savić, V., Obradović, M., Matijašević, S.,& Grujić, S.. (2023). Dissolution of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures. in 5th Metallurgical & Materials Engineering Congress of South-East Europe Belgrade : Association of Metallurgical Engineers of Serbia., 231-236.
Nikolić J, Topalović V, Đošić M, Savić V, Obradović M, Matijašević S, Grujić S. Dissolution of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:231-236..
Nikolić, Jelena, Topalović, Vladimir, Đošić, Marija, Savić, Veljko, Obradović, Milena, Matijašević, Srđan, Grujić, Snežana, "Dissolution of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):231-236.