钠化剂对含钛高炉渣钠化反应的影响
将含钛高炉渣与钠化剂混合焙烧，利用XRD（X-ray Diffiraction、X射线衍射仪）、ICP（Inductively Coupled Plasma atomic emission spectroscop、电感耦合等离子体发射光谱仪）对实验结果进行检测分析，研究钠化剂种类、保温时间、保温温度对含钛高炉渣钠化反应的影响。实验表明，适当提高温度、延长保温时间（1150℃、4小时）可明显提高含钛高炉渣的钠化率到59%；并且碳酸钠作为钠化剂比氢氧化钠的钠化率高。
关键词：含钛高炉渣；碳酸钠；氢氧化钠；钠化
Abstract
This paper mainly studies the effect of sodium agent on sodium reaction of titanium-bearing slag。 By thermodynamic calculation, analysing the composition of titanium-bearing slag and the feasibility of Sodium reaction, and to determine the theoretical temperature of the reaction。 The results show that the best theoretical reaction temperature is 1150 ℃, and when the temperature is higher than 700 ℃, reaction Gibbs of TiO2, SiO2 and Al2O3 in the titanium-containing blast furnace slag with sodium agent are all minus, and the higher the temperature the smaller the value of Gibbs free energy,indicating that in this temperature range these reactions can be carried forward。
Baking the mixture of the titanium-bearing slag with sodium agent,using XRD(X-ray diffraction)、ICP(inductively coupled plasma atomic emission spectroscop ) to detect and analyze the results of experiments,studying the effect of the type of sodium agent、holding time、holding temperature on the sodium reaction of titanium-bearing slag。 Experimental results show that an appropriate increase in temperature and holding time (1150 ℃, 4 hours) can significantly improve the sodium rate of titanium-bearing slag to 59%; And Sodium carbonate as sodium agent compared to hydroxide is more conducive to improve the sodium rate of titanium–bearing slag。
Keywords: Titanium-bearing slag; Sodium carbonate; Sodium hydroxide; Sodium agent
目录
第一章 绪论 1
1。1含钛高炉渣概述 1
1。1。1含钛高炉渣来源 1
1。1。2含钛高炉渣成分 1
1。1。3含钛高炉渣性质与分类 2
1。2含钛高炉渣的研究与利用 3
1。2。1国外研究与利用现状 4
1。2。2国内利用现状 5
1。3含钛高炉渣钠化反应中存在的问题 6
1。4本课题研究的目的和意义 6
1。5本课题研究的主要内容 7
1。6 研究方法 7
第二章含钛高炉渣钠化反应的热力学分析 9
2。1引言 9
2。2含钛高炉渣钠化反应可行性分析 9
2。2。1含钛高炉渣与碳酸钠的钠化反应 10
2。2。2含钛高炉渣与氢氧化钠的钠化反应 12
2。3 合理的钠化制度的提出 14
第三章 实验原理及方案 15
3。1 实验原理 15
3。2实验原料-含钛高炉渣 15
3。2。1含钛高炉渣的特点 15