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An investigation of the decomposition mechanism of calcium carbonate

D. Wang ; School of Materials and Metallurgy, University of Science and Technology Liaoning, China
Z. Zhao ; School of Chemistry and Life Science, Anshan Normal University, Liaoning, China
G. L. Tan ; Department of Chemical Engineering, Yingkou Institute of Technology, Liaoning, China
S. Zhang ; School of Materials and Metallurgy, University of Science and Technology Liaoning, China
Q. Wang ; School of Materials and Metallurgy, University of Science and Technology Liaoning, China

Puni tekst: engleski, pdf (237 KB) str. 9-12 preuzimanja: 598* citiraj
APA 6th Edition
Wang, D., Zhao, Z., Tan, G.L., Zhang, S. i Wang, Q. (2017). An investigation of the decomposition mechanism of calcium carbonate. Metalurgija, 56 (1-2), 9-12. Preuzeto s https://hrcak.srce.hr/168841
MLA 8th Edition
Wang, D., et al. "An investigation of the decomposition mechanism of calcium carbonate." Metalurgija, vol. 56, br. 1-2, 2017, str. 9-12. https://hrcak.srce.hr/168841. Citirano 24.01.2020.
Chicago 17th Edition
Wang, D., Z. Zhao, G. L. Tan, S. Zhang i Q. Wang. "An investigation of the decomposition mechanism of calcium carbonate." Metalurgija 56, br. 1-2 (2017): 9-12. https://hrcak.srce.hr/168841
Harvard
Wang, D., et al. (2017). 'An investigation of the decomposition mechanism of calcium carbonate', Metalurgija, 56(1-2), str. 9-12. Preuzeto s: https://hrcak.srce.hr/168841 (Datum pristupa: 24.01.2020.)
Vancouver
Wang D, Zhao Z, Tan GL, Zhang S, Wang Q. An investigation of the decomposition mechanism of calcium carbonate. Metalurgija [Internet]. 2017 [pristupljeno 24.01.2020.];56(1-2):9-12. Dostupno na: https://hrcak.srce.hr/168841
IEEE
D. Wang, Z. Zhao, G.L. Tan, S. Zhang i Q. Wang, "An investigation of the decomposition mechanism of calcium carbonate", Metalurgija, vol.56, br. 1-2, str. 9-12, 2017. [Online]. Dostupno na: https://hrcak.srce.hr/168841. [Citirano: 24.01.2020.]

Sažetak
This paper focuses on investigating the decomposition mechanism of ca lcium carbonate. The non-isothermal thermal decompositions of calcium carbonate under vacuum and flowing nitrogen atmosphere have been studied by thermogravimetric analysis. With the application of the advanced nonlinear isoconversional method, the determined activation energy for each condition is dependent on the extent of reaction. Based on the dependences, a process involving two consecutive decomposition steps has been simulated. The simulation results match the experimental results of flowing nitrogen atmosphere. Results indicate that the decomposition of calcium carbonate undergoes the process of the formation of the intermediate and metastable product.

Ključne riječi
calcium carbonate; thermal decomposition; advanced nonlinear isoconversional method; activation energy; mechanism

Hrčak ID: 168841

URI
https://hrcak.srce.hr/168841

Posjeta: 811 *