Activities of FeO in CaO-SiO2-Al2O3-MgO-FeO slags

• Published in: Journal of Shanghai University Vol. 12; no. 5; pp. 466 - 470
• Main Author: 吕庆 赵丽树 王成立 张淑会 李福民 刘增勋
• Format: Journal Article
• Language: English
• Published: Heidelberg Shanghai University Press 01.10.2008
• Subjects: CaO＋Si02＋A1203＋Mg0＋FeO; Classical Mechanics; Engineering; Environment; FeO; Life Sciences; Materials Science; Mathematical and Computational Engineering; Mechatronics; 五元渣系; basicity; solid electrolyte cell; MgO-FeO slags; FeO activities; CaO-SiO; Al; O; MgO content
• ISSN: 1007-6417; 1863-236X
• DOI: 10.1007/s11741-008-0517-1

Activities of FeO in CaO-SiO2-Al2O3-MgO-FeO slags were determined at 1673 K by electrochemical of the solid electrolyte cell： Mo [Mo＋MoOu[ZrO2（MgO）[Fe＋（CaO-SiO2-Al2O3-MgO-FeO）＋Ag[Fe. The influences of slag compositions and basicity on FeO activities were analyzed. The results reveal that, for slags of fixed （%CaO）/（%SiO2） ratio, MgO and Al2O3 content, there was an increase of FeO activities with increase of FeO content. For slags with constant {（%CaO）＋ （%MgO）}/（%SiO2） ratio, fixed FeO and A1203 content, FeO activities decreased when MgO content increased from 5% to 10%, and increased with the increase of MgO content when it was over 10%. The FeO activities increased when （%CaO）/（%SiO2） ratio changed from 1.03 to 1.30 in the slags of constant MgO, FeO and Al2O3 content.