CaO+SiO_2+Al_20_3+MgO+FeO五元渣系中Fe0活度的研究(英文)

• 作 者: 吕庆 赵丽树 王成立 张淑会 李福民 刘增勋
• 机 构: School of Metallurgy and Energy, Hebei Polytechnic University,School of Materials and Metallurgy, No
• 出 处: Journal of Shanghai University(English Edition)
• 发表日期: 2008年05期
• 关键词: 渣系 electrolyte 活度 ferrous 英文 Alumina silver mortar polymerization graphite

Activities of FeO in CaO-SiO2-Al2O3-MgO-FeO slags were determined at 1 673 K by electrochemical measurements of the solid electrolyte cell: Mo |Mo+MoO2|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 Al2O3 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.

Activities of FeO in CaO-SiO 2 -Al 2 O 3 -MgO-FeO slags were determined at 1 673 K by electrochemical measurements of the solid electrolyte cell: Mo | Mo + MoO 2 | ZrO 2 (MgO) | Fe + (CaO-SiO 2 -Al 2 O 3 -MgO- The effects 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 decreased with MgO content increased from 5% to 10%, FeO activities with increase of FeO content. For slags with constant {(% CaO) + (% MgO)} / (% SiO2) 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.