含钛高炉渣湿法提钛时杂质酸解行为的研究

The Behaviors of the Impurities in Ti-bearing Slag During Leaching Process

对含钛高炉渣中杂质的酸解行为进行了研究,并考察了搅拌强度、渣酸比、硫酸浓度、反应时间和反应温度等因素对杂质酸解率的影响规律,结果证实:A l2O3及MgO不同程度的酸解,溶解于硫酸氧钛溶液中;CaO与硫酸反应以CaSO4进入渣相;二氧化硅以无定型留于渣相。

The behaviors of the impurities in Ti-bearing blast furnace slag were investigated during leaching process. The influences of several factors such stirring intensity, the ratio of the slag to acid, the concentration of sulphuric acid, reaction time and temperature on leaching rate of the impurities were examined. The results indicate that both of Al2O3 and MgO were leached into solution of TiOSO4 together with TiO2;CaO reacted with acid into solid slag as CaSO4, but SiO2 remained in slag.