Abstract
The reduction kinetic condition of the direct solid-phase reduction of metal oxide powder containing coal by microwave heating is better than that by the conventional heating process. The research shows that the gas ionization during carbothermal reduction accelerates the carbon gasification reaction and interface chemical reaction, and it also improves the kinetic conditions of carbothermal reduction. Thus, the formation mechanism and process of gas ionization as well as its effect during the carbothermal reduction of metal oxides containing coal by microwave heating are studied.
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CHEN Jin, LIU Liu, ZENG Jia-qing, et al. Experimental Research of Microwave Heating on Iron Ore Concentrates Containing Coal and Lime [J]. Iron and Steel, 2004, 39(6): 1 (in Chinese).
LI Zheng-bang, Theory and Progress of Plasma Metallurgy [J]. Special Steel, 1999, 20(3): 1 (in Chinese).
Annemie Bogaerts, Erik Neyts, Renaat Gijbels, et al. Gas Discharge Plasmas and Their Applications [J]. Spectrochimica Acta Part B, 2002, 57(4): 609.
Boyd T J M, Sanderson J J. Introduction to Plasma Physics [M]. Beijing: Science Press, 1977.
ZHAO Hua-qiao, Plasma Chemistry and Technology [M]. Hefei: University of Science and Technology of China Press, 1993 (in Chinese).
HUANG Ping, XU Ting-xian, JI Hui-ming. Numerical Analysis on the Interaction of 2.45 GHz Microwave With Uniform Plasma [J]. Journal of Microwaves, 2004, 20(3): 69.
ZHANG Zhao-tang, ZHONG Ruo-qing. Fundament of Microwave Heating Technology [M]. Beijing: Publishing House of Electronics Industry, 1988 (in Chinese).
CHEN Da-kai, LIU Jing. Applications of Plasma Techniques in Material Science [J]. Journal of Wuhan University of Science and Technology (Natural Science Edition), 2001, 24(4): 345 (in Chinese).
JIN Qin-han, DAI Shu-shan, HUANG Ka-ma. Microwave Chemistry [M]. Beijing: Science Press, 1999 (in Chinese).
DAI Bin, GONG Wei-min, ZHANG Xiu-ling, et al. Progress on CO2 Conversion by Plasma—Catalysis [J]. Progress in Chemistry, 2002, 14(3): 225 (in Chinese).
DAI Bin, GONG Wei-min, ZHANG Xiu-ling, et al. Investigation on Conversion of CO2-CO Conversion by Cold Plasma [J]. Natural Gas Chemical Industry, 2000, 25(6): 11.
Médard N, Soutif J C, Poncin-Epaillard F. Characterization of CO2 Plasma-Treated Polyethylene Surface Bearing Carboxylic Groups [J]. Surface and Coatings Technology, 2002, 160(2–3): 197.
Antonius Inddarto, Dae Ryook Yang, Jae Wook Choi, et al. Gliding Arc Plasma Processing of CO2 Conversion [J]. Journal of Hazardous Materials, 2007, 146(1–2): 309.
CHEN Wan-de. General Physics [M]. Beijing: China Agriculture Publishing House, 2000 (in Chinese).
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Foundation Item: Item Sponsored by National Natural Science Foundation of China (50674069)
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Chen, J., Shi, Xh., Zhang, M. et al. Gas ionization during carbothermal reduction in microwave field and its effect. J. Iron Steel Res. Int. 16, 12–16 (2009). https://doi.org/10.1016/S1006-706X(10)60003-9
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DOI: https://doi.org/10.1016/S1006-706X(10)60003-9