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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)
引用本文:

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.

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     
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