金属学报  1984, Vol. 20 Issue (6): 475-482

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固体碳还原熔融氧化铁的速度研究

周渝生;杜挺

马鞍山钢铁学院;冶金工业部钢铁研究总院

REDUCTION RATE OF FeO IN MOLTEN SLAG BY SOLID CARBON

ZHOU Yusheng (Ma'anshan Institute of Iron and Steel Technology); DU Ting (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing) (Manuscript received 31 January; 1983; revised manuscript 9 February; 1984)

周渝生;杜挺. 固体碳还原熔融氧化铁的速度研究[J]. 金属学报, 1984, 20(6): 475-482.
, . REDUCTION RATE OF FeO IN MOLTEN SLAG BY SOLID CARBON[J]. Acta Metall Sin, 1984, 20(6): 475-482.

摘要 参考文献 相关文章 Metrics 全文: PDF(561 KB)   摘要: 用体系的初始浓度结合反应过程还原剂失重速度测定动力学参数的方法,测量了固体碳还原熔融FeO-CaO-SiO_2-MgO和FeO-CaO-SiO_2两种渣系中FeO的还原速度。在本试验条件下测出的还原反应速度是总FeO(wt-％)的表观一级反应。表观活化能为222.60kJ/mol。本试验的经验速度方程式为 v=-(W_s/A)·dC/dt=1453.0[exp(-(222600/RT))]·C 试验表明对流扩散是固体碳还原熔融氧化铁反应的速度限制步骤。 Abstract：The reduction rate of FeO in molten slags of two systems FeO-CaO-SiO_2-MgO and FeO-CaO-SiO_2 by solid carbon has been determined by the method of measuring the kinetic parameters in which a combination of the initial concentration in system with the weightless rate of reductant in the reaction process was made. The reduction rate determined by this study is of an apparent first order reaction of overall wt-% of FeO. The measured apparent activation energy is 222.60 kJ/mol. The empirical equation of the rate is v=-(W_s/A)dc/dt=1453.0[exp(222600/RT)]·C Experimental results show that the convection diffusion is the rate-controlling step in the reduction of molten FeO by solid carbon. 收稿日期: 1984-06-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 周渝生 杜挺 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1984/V20/I6/475 1 佐佐木康;岡本恭典;相马胤和,鉄鋼,64(1978) ,367． 2 Davies, M. W.; Hazeldean, G. S. F; Smith, P. N., Physical Chemistry of Process Metallurgy, The Richardson Conference, Eds. Jeffes, J. H. E.; Tait, R. J., Inst. Min. Metall, 1974; p.95． 3 Krainer, H.; Beer, H.P.; Brandl, H., Tech. Mitt. Krupp, Fors chungsber., 24 (1966) , 139． 4 Fay Fun, Metall. Trans., 1(1970) , 2537． 5 须贺田正泰;杉山喬,近藤真一,鉄鋼,58(1972) ,1363． 6 Frost, A. A.; Pearson, R. G.化学动力学和历程--均相化学反应的研究,孙承谔译,科学出版社,1966,p.9-50． 7 魏寿昆,冶金过程热力学,上海科学技术出版社,1980,p.233． 8 Wagner, C., The Physical Chemistry of Steelmalcing, Ed. Elliott, J. F., Wiley, New York, 1958, p. 237． 9 1956, p. 284． 10 王渭源,金属学报,7(1964) ,376． 11 Richardson, F. D., Steelmalcing, The Chipman Conference, Eds. Elliott, J. F.; Meadowcroft, R., Cambridge, Mass, MIT, 1962, p.66． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed