CaO-SiO2-Al2O3-MgO-TiO2钢渣体系熔化性能  

Melting performance of CaO-SiO_2-Al_2O_3-MgO-TiO_2 slag system

作　　者：徐冉[1,2] 宋波[1,2] 毛璟红[3] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]北京科技大学生态循环冶金部霞点实验室,北京100083 [3]北京科技大学材料科学与工程学院,北京100083

出　　处：《北京科技大学学报》2010年第11期1422-1427,共6页Journal of University of Science and Technology Beijing

基　　金：中央高校基本科研业务费专项资金资助项目(No.FRF-MP-09-001A)

摘　　要：采用热力学计算软件FactSage的Phase Diagram模块和Equilib模块对含钛钢渣熔点进行理论研究,并通过熔点实验对研究结果进行验证.研究发现：对于碱度R〈1.5的渣系,当TiO2质量分数小于13%时,TiO2对熔点影响较小;当TiO2质量分数大于13%时,TiO2提高熔点.对于R〉1.5的渣系,Al2O3质量分数为25%-35%时,TiO2的质量分数超过1%可显著提高渣系熔点.The melting point of titanium-containing steel slag was theoretically calculated using the Phase Diagram module and the Equilib module of thermodynamic calculation software FactSage,and the calculation result was verified by melting experiments.It is shown that,for a slag system with the basicity below 1.5,when the mass fraction of TiO2 is less than 13%,TiO2 has little effect on the melting point of the slag,and while the mass fraction of TiO2 is over 13%,TiO2 can increase the melting point.For a slag system whose basicity is over 1.5 and mass fraction of Al2O3 is between 25% and 35%,when the mass fraction of TiO2 is more than 1%,TiO2 can significantly increase the melting point of the slag.

关 键 词：渣 二氧化钛 熔点 热力学计算 

分 类 号：TF703.6[冶金工程—钢铁冶金]