含钛高炉熔渣氧化过程温度变化匡算

Temperature Change during Oxidization of Titanium-bearing Slag Using Air

含钛高炉渣为还原性渣.基于“选择性析出技术”利用渣中钛资源,需要氧化炉渣,提高氧位.熔渣中的还原态物质在氧化过程中会放出热量从而引起熔渣的温度变化.本研究建立了模拟熔渣氧化过程温度变化的一个简易模型,并通过实验测量了含钛熔渣氧化过程中实际的温度变化.结果表明,模型计算的温度变化趋势与实测一致.

Titanium-bearing slag is deoxidized slag, and Ti is dispersed in the slag. Based on the technology of selective precipitation, the slag is supposed to be oxidized so as to transform Ti^3＋ and Ti^2＋ into single Ti^4＋ state for further recovery and utilization. While the oxygen potential of slag is raised, the reduced components in slag will be oxidized and the released heat will raise the temperature of slag. In the present study, the modeling calculation on the temperature change in the oxidization process was carried out and the temperature change of actual titanium-bearing slag during oxidization was also measured. The comparison of results shows that the calculated trend of slag temperature is reasonably consistent with temperature measurements.