KaydedilenlerDerginizi ekleyin

Dergiler / Bor Dergisi / 2026 / Cilt: 9 Sayı: 3

Thermal decomposition behaviors, kinetics and thermodynamics of colemanite

Sevgi Polat(Marmara University)0000-0002-0934-2125
Sayfa
97–103
Yayın Tarihi
2024-09-30
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Through the thermodynamic analysis, it was found that the dehydration of colemanite was a non-spontaneous and endothermic process.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:Colemanite, the most significant commercially available borate mineral with calcium content, exhibits versatile applications and is widely used in glass, textiles, ceramics, detergents, and other industries.
📊
Temel Bulgular & Veri:Investigating the dehydration characteristics, kinetics, and thermodynamics of this borate mineral is important to improve its performance because of its usage in different industries.
💡
Sonuç & Katkı:Through the thermodynamic analysis, it was found that the dehydration of colemanite was a non-spontaneous and endothermic process.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Colemanite · Morphology · Thermal kinetics

Özet

Colemanite, the most significant commercially available borate mineral with calcium content, exhibits versatile applications and is widely used in glass, textiles, ceramics, detergents, and other industries. Investigating the dehydration characteristics, kinetics, and thermodynamics of this borate mineral is important to improve its performance because of its usage in different industries. This study involves a combination of characterization and thermal dehydration kinetics of colemanite results. First, colemanite is analyzed structurally and morphologically through X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Then, different heating rates were applied to investigate the thermal behavior of the colemanite using thermogravimetric analysis (TGA). Based on the obtained thermograms, the dehydration zone was selected for kinetic and thermodynamic analysis using conversional kinetic methods. The average activation energies were calculated as 64.1±4.3, 59.6±3.9, 59.9±3.7, and 60.0±4.1 kJ/mol for Flynn-Wall-Ozawa, Kissinger-Akahira-Sunose, Starink, and Tang models, respectively. Through the thermodynamic analysis, it was found that the dehydration of colemanite was a non-spontaneous and endothermic process.

Abstract

Colemanite, the most significant commercially available borate mineral with calcium content, exhibits versatile applications and is widely used in glass, textiles, ceramics, detergents, and other industries. Investigating the dehydration characteristics, kinetics, and thermodynamics of this borate mineral is important to improve its performance because of its usage in different industries. This study involves a combination of characterization and thermal dehydration kinetics of colemanite results. First, colemanite is analyzed structurally and morphologically through X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Then, different heating rates were applied to investigate the thermal behavior of the colemanite using thermogravimetric analysis (TGA). Based on the obtained thermograms, the dehydration zone was selected for kinetic and thermodynamic analysis using conversional kinetic methods. The average activation energies were calculated as 64.1±4.3, 59.6±3.9, 59.9±3.7, and 60.0±4.1 kJ/mol for Flynn-Wall-Ozawa, Kissinger-Akahira-Sunose, Starink, and Tang models, respectively. Through the thermodynamic analysis, it was found that the dehydration of colemanite was a non-spontaneous and endothermic process.

🔖

Bu Makaleye Atıf Yap

Polat, S. (2024). Thermal decomposition behaviors, kinetics and thermodynamics of colemanite. Bor Dergisi, Cilt: 9 Sayı: 3, 97–103. https://doi.org/10.30728/boron.1452576

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (26)

  1. Rusen, A. (2018). Investigation of structural behaviour of colemanite depending on temperature. Revista Română de Materiale/Romanian Journal of Materials, 48(2), 245-251. Retrieved from https://solacolu.chim.upb.ro/p245-250.pdf
  2. Celik, A. G., & Cakal, G. O. (2016). Characterization of espey colemanite and variation of its physical properties with temperature. Physicochemical Problems of Mineral Processing, 52(1), 66-76. https://doi.org/10.5277/ppmp160106
  3. Terzi, E. (2018). Thermal degradation of particleboards incorporated with colemanite and common boron-based fire retardants. BioResources, 13(2), 4239-4251. https://doi.org/10.15376/biores.13.2.4239-4251
  4. Kizilca, M., & Copur, M. (2017). Thermal dehydration of colemanite: kinetics and mechanism determined using the master plots method. Canadian Metallurgical Quarterly, 56(3), 259-271. https://doi.org/10.1080/00084433.2017.1349023
  5. Yıldız, Ö. (2004). The effect of heat treatment on colemanite processing: A ceramics application. Powder Technology, 142, 7-12. https://doi.org/10.1016/j.powtec.2004.03.006
  6. Lotti, P., Gatta, D., Demitri, N., Guastella, G., Rizzato, S., Ortenzi, M. A., … & Fernandez‑Diaz M. T. (2018). Crystal chemistry and temperature behavior of the natural hydrous borate colemanite, a mineral commodity of boron. Physics and Chemistry of Minerals, 45, 405-422. https://doi.org/10.1007/s00269-017-0929-7
  7. Lotti, P., Comboni, D., Gigli, L., Carlucci, L., Mossini, E., Macerata, E., … & Gatta, G. D. (2019) Thermal stability and high-temperature behavior of the natural borate colemanite: An aggregate in radiation-shielding concretes. Construction and Building Materials, 203, 679-686. https://doi.org/10.1016/j.conbuildmat.2019.01.123
  8. Frost, R. L., Scholz, R., Ruan, X., Malena, R., & Lima, F. (2016). Thermal analysis and infrared emission spectroscopy of the borate mineral colemanite (CaB3O4(OH)3H2O). Journal of Thermal Analysis and Calorimetry, 124, 131-135. https://doi.org/10.1007/s10973-015-5128-5
  9. Uysal, T., Mutlu, H. S., & Erdemoğlu, M. (2016). Effects of mechanical activation of colemanite (Ca2B6O11·5H2O) on its thermal transformations. International Journal of Mineral Processing, 151, 51-58. https://doi.org/10.1016/j.minpro.2016.04.006
  10. Ozawa, T. (2000). Thermal analysis-review and prospect. Thermochimica Acta, 355, 35-42. https://doi.org/10.1016/S0040-6031(00)00435-4
  11. Waclawska, I., Stoch, L., Paulik, J., & Paulik, F. (1988). Thermal decomposition of colemanite. Thermochimica Acta, 126, 307-318. https://doi.org/10.1016/0040-6031(88)87276-9
  12. Waclawska, I. (1997). Thermal behaviour of mechanically amorphized colemanite. Journal of Thermal Analysis, 48, 145-154. https://doi.org/10.1007/BF01978975
  13. Kutuk, S. (2024). Morphology, crystal structure and thermal properties of nano-sized amorphous colemanite synthesis. Arabian Journal for Science and Engineering, 49, 11699-11716. https://doi.org/10.1007/s13369-024-08801-4
  14. Kalita, J. M., Kaya-Keleş, Ş., Çakal, G. Ö., Meriç N., & Polymeris, G. S. (2022) Thermoluminescence and optically stimulated luminescence of colemanite-rich borate mineral. Journal of Luminescence, 242, 118580. https://doi.org/10.1016/j.jlumin.2021.118580
  15. Ozawa, T., (1965). A new method of analyzing thermogravimetric data. Bulletin of the Chemical Society of Japan, 38, 1881-1886. https://doi.org/10.1246/bcsj.38.1881
  16. Flynn, J. H., & Wall, L. A. (1966). General treatment of the thermogravimetry of polymers. Journal of Research of the National Institute of Standards and Technology, 70, 487-523. https://doi.org/10.6028%2Fjres.070A.043
  17. Kissinger, H. E. (1957). Reaction kinetics in differential thermal analysis. Analytical Chemistry, 29, 1702-1706. https://doi.org/10.1021/ac60131a045
  18. Koga N., Vyazovkin S., Burnham A. K., Favergeon L., Muravyev N. V., Pérez-Maqueda L. A., … & Sánchez-Jiménez P. E. (2023). ICTAC Kinetics Committee recommendations for analysis of thermal decomposition kinetics. Thermochimica Acta, 719, 179384. https://doi.org/10.1016/j.tca.2022.179384
  19. Starink, M. (1996). A new method for the derivation of activation energies from experiments performed at constant heating rate. Thermochimica Acta, 288, 97-104. https://doi.org/10.1016/S0040-6031(96)03053-5
  20. Tang, W., Liu, Y., Zhang, H., & Wan, C., (2003). New approximate formula for Arrhenius temperature integral. Thermochimica Acta, 408, 39-43. https://doi.org/10.1016/S0040-6031(03)00310-1
  21. Kissinger, H. (1956). Variation of peak temperature with heating rate in differential thermal analysis. Journal of Research of the National Institute of Standards and Technology, 7, 217-221. http://dx.doi.org/10.6028/jres.057.026
  22. Eyring, H. (1935). The activated complex in chemical reactions. The Journal of Chemical Physics, 3, 107-115. https://doi.org/10.1063/1.1749604
  23. Evans, M. G., & Polanyi, M. (1935). Some applications of the transition state method to the calculation of reaction velocities especially in solution. Transactions of the Faraday Society, 31, 875-894. https://doi.org/10.1039/TF9353100875
  24. Jun, L., Shuping, X., & Shiyang, G. (1995). FT-IR and Raman spectroscopic study of hydrated borates. Spectrochimica Acta, 51A, 519-532. https://doi.org/10.1016/0584-8539(94)00183-C
  25. Budak, A., & Gönen, M. (2014). Extraction of boric acid from colemanite mineral by supercritical carbon dioxide. The Journal of Supercritical Fluids, 92, 183-189. https://doi.org/10.1016/j.supflu.2014.05.016
  26. Morova, N., & Terzi S. (2015). Evaluation of colemanite waste as aggregate hot mix asphalt concrete. Suleyman Demirel University Journal of Natural and Applied Science, 19(2), 8-15. [26] Morova, N., & Terzi S. (2015). Evaluation of colemanite waste as aggregate hot mix asphalt concrete. Suleyman Demirel University Journal of Natural and Applied Science, 19(2), 8-15.