Kinetics of the thermal decomposition of Wangjiatan siderite

Zhili Feng; Yongfu Yu; Genfan Liu; Wen Chen

doi:10.1007/s11595-011-0261-x

Journal of Wuhan University of Technology Materials Science Edition ›› 2011, Vol. 26 ›› Issue (3) :523 -526. DOI: 10.1007/s11595-011-0261-x

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Kinetics of the thermal decomposition of Wangjiatan siderite

Zhili Feng ¹^,^{^a}
, Yongfu Yu ¹^,²^,³
, Genfan Liu ¹
, Wen Chen ²^,³

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Abstract

The thermal decomposition processes of Wangjiatan siderite samples were studied in nitrogen by thermogravimetric(TG) analysis. The mechanism of thermal decomposition of the siderite obeyed an F_n kinetic law and the n-order was between 1.16 and 1.29. The results from non-isothermal experiments show that the size of particles has an obvious effect on the logarithm of pre-exponential factor in kinetics parameter of the thermal decomposition of Wangjiatan siderite. A linear relationship is shown between the size of particles and the logarithm of pre-exponential factor. An F₁ kinetic model containing size factor describes the thermal decomposition of Wangjiatan siderite well.

Keywords

thermal decomposition / mechanism / kinetics / siderite

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Zhili Feng, Yongfu Yu, Genfan Liu, Wen Chen. Kinetics of the thermal decomposition of Wangjiatan siderite. Journal of Wuhan University of Technology Materials Science Edition, 2011, 26(3): 523-526 DOI:10.1007/s11595-011-0261-x

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References

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[1]	Gallagher P. K., Warne S. S. J. Thermomagnetometry and Thermal Decomposition of Siderite[J]. Thermochimica Acta, 1981, 43: 253-267.

[2]	Zakharov V. Y., Adonyi Z. Thermal Decomposition Kinetics of Siderite[J]. Thermochimica Acta, 1986, 102: 101-107.

[3]	Dhupe A. P., Gokarn A. N. Studies in the Thermal Decomposition of Natural Siderites in the Presence of Air[J]. Int. J. Miner. Process., 1990, 28: 209-220.

[4]	Jagtap S. B., Pande A. R., Gokarn A. N. Kinetics of Thermal Decomposition of Siderite: Effect of Particle Size[J]. Int. J. Miner. Process., 1992, 36: 113-124.

[5]	Gotor F. J., Macias M., Ortega A., . Comparative Study of the Kinetics of the Thermal Decomposition of Synthetic and Natural Siderite Samples[J]. Phys. Chem. Minerals, 2000, 27: 495-503.

[6]	Dilek A., Umit Atalay. Kinetics of Thermal Decomposition of Hekimhan-Deveci Siderite Ores Samples[J]. Int. J. Miner. Process., 2008, 87: 120-128.

[7]	Feng Z. L., Yu Y. F., Liu G. F., . Thermal Decomposition Kinetics of Siderite in Nitrogen[J]. J. of Wuhan University of Technology, 2009, 31(17): 11-14.