Electroreduction Kinetics for Molten Oxide Slags
Electroreduction Kinetics for Molten Oxide Slags作者机构:Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and Technology Wuhan 430081 Hubei China Metallurgical and Ecological Engineering School University of Science and Technology Beijing Beijing 100083 China
出 版 物:《Journal of Iron and Steel Research International》 (J. Iron Steel Res. Int.)
年 卷 期:2007年第14卷第1期
页 面:16-20页
核心收录:
学科分类:080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程]
基 金:Item Sponsored by National Natural Science Foundation of China (50274008 ,50574011) Provincial Natural Science Foundationof Hubei Province of China (2005ABA019)
主 题:molten oxide slag zirconia galvanic cell electroreduction kinetics model
摘 要:The oxygen-ion conductor, the reducing agent, and the molten oxide slag containing electroactive matter were used as constituent of a galvanic cell. Metal was directly electroreduced from molten slag using a short-circuit galvanic cell. The following galvanic cell was assembled in the present experiment: graphite rod, [-O]Fe-C saturated |ZrO2 (MgO) | Cu(1) + (FeO)(slag) , and molybdenum wire. The FeO electroreduction reaction was studied through measuring short circuit current by controlling factors such as temperature, the FeO content in molten slags, and the external circuit resistance. An overall kinetics model was developed to describe the process of FeO electroreductiono It was found that the modeled curves were in good agreement with the experimental values. The new oxide reduction method in the metallurgy with controlled oxygen flow was proposed and the metallurgical theory with controlled oxygen flow was developed.