中南大学学报（自然科学版）2017，Vol.48Issue(6)：1413-1419,7.DOI:10.11817/j.issn.1672-7207.2017.06.001
富硼渣MgO-B2O3-SiO2-FeO体系表面张力计算
Evaluation of surface tension for MgO-B2O3-SiO2-FeO boron-rich slag
摘要
Abstract
Based on the coexistence theory of ions and molecules of molten melt structure and Butler's equation,a thermodynamic model was developed to establish the surface tension of MgO-B2O3-SiO2-FeO system and its sub-system.The relationship between the composition and temperature and surface tension of molten slag was investigated.The results indicate that the calculated values for related systems show good agreements with the literature data,and the average error is about 11.85％.The surface tension of molten slag decreases with increasing the B2O3 content significantly in molten slag binary system.The surface tension value of pure oxide is related to the electrostatic potential of cations and the ion bond percentage in oxide.The surface tension in MgO-B2O3-SiO2-FeO system decreases significantly with increasing temperature and the B2O3 content,and increases with increasing the mass ratio of MgO to SiO2.While the B2O3 content is 17％-19％,the trends that surface tension varied with the FeO content,are changed.When the B2O3 content is low,surface tension of slag increases with the increase of the FeO content;when the B2O3 content is high,the surface tension decreases with the increase of the FeO content.关键词
MgO-B2O3-SiO2-FeO熔渣/B2O3含量/表面张力/共存理论/计算模型Key words
MgO-B2O3-SiO2-FeO slag/B2O3 content/surface tension/coexistence theory/calculating model分类
矿业与冶金引用本文复制引用
许继芳,陈栋,翁文凭,盛敏奇,张捷宇,吕凡..富硼渣MgO-B2O3-SiO2-FeO体系表面张力计算[J].中南大学学报（自然科学版）,2017,48(6):1413-1419,7.基金项目
江苏省自然科学基金资助项目(BK20130308 （）
BK20140337) （）
国家自然科学基金资助项目(50874072 （）
51504155) （）
中国博士后科学基金资助项目(2014M561710)(Projects(BK20130308 （2014M561710）
BK20140337) supported by the Natural Science Foundation of Jiangsu Province （）
Projects(50874072 （）
51504155) supported by the National Natural Science Foundation of China （）
Project(2014M561710) supported by the China Postdoctoral Science Foundation) （2014M561710）
