含钛混合熔渣的实验研究

Experimental study on titanium-containing mixed slag

本论文以含钛高炉渣为原料,借助XRD、SEM、EDS分析手段,研究钢渣添加量和氧化时间对含钛高炉渣析晶行为的影响。结果表明:适当的氧化有利于增加钙钛矿的析出量,钢渣的添加有利于含钛透辉石中的钛元素向钙钛矿的转化。较佳的钢渣添加量和氧化时间分别为35%和4 min,此时改性渣中钙钛矿的体积分数由14.8%增加到40.9%。

In this paper,the effects of steel slag addition and oxidation time on the crystallization behavior of titanium-containing blast furnace slag are studied by XRD,SEM and EDS analysis methods.The results show that the proper oxidation is beneficial to increase the amount of perovskite precipitation,and the addition of steel slag is beneficial to the conversion of titanium element in titanium-containing diopside to perovskite.The optimal addition amount of steel slag and oxidation time are 35%and 4 min,respectively,and the volume fraction of perovskite in the modified slag increases from 14.8%to 40.9%.