TiO_2对高炉渣黏度的影响  

Effects of TiO_2 on the viscosity of blast furnace slag

作　　者：赵满祥[1] 李明[1] 马金芳[1] 贾军民[1] 闵东俊 金完浩 

机构地区：[1]首钢股份公司迁安钢铁公司技术质量部,河北迁安064404 [2]延世大学化学冶金实验室,韩国首尔120830

出　　处：《钢铁研究》2015年第1期1-4,共4页Research on Iron and Steel

摘　　要：为了阐明TiO2对炼铁高炉渣黏度的影响,用Brookfield DV-Ⅱ型黏度计对五元渣系CaO-SiO2-7.5%MgO-15%Al2O3-TiO2(w(CaO)/w(SiO2)=1.18)炉渣的黏度进行了测量。结果表明:在1 773K时,随着w(TiO2)的增加炉渣黏度降低;同时用傅里叶光谱仪分析炉渣结构发现,随着w(TiO2)的增加,[SiO4]4-四面体离子结构逐渐解聚,这是典型的碱性氧化物特征,表明TiO2可提供促进解聚的氧离子。In order to elucidate effects of TiO2 on the viscosity of blast furnace slag,the viscosity of slag CaO-SiO2-7.5 % MgO-15 % Al2O3-TiO2（w（CaO）/w（SiO2）=1.18）was measured by Brookfield DV-Ⅱ viscometer.The results showed that the viscosity of the slag reduced with the increasing of w（TiO2）at 1 773 K.At the same time,the slag microstructure was analyzed by FT-IR and found the [SiO4]^4- tetrahedral structure gradually depolymerizing with increasing of w（TiO2）.This was the typical characteristic of alkaline oxides,revealed TiO2 could provide oxygen ions that promote depolymerization.

关 键 词：高炉渣黏度 TIO2 碱性氧化物 

分 类 号：TF534.1[冶金工程—钢铁冶金]