【作者】 王思佳； 张悦； 白丽丽； 薛向欣； 杨合；

【Author】 Wang Sijia,Zhang Yue,Bai Lili,Xue Xiangxin,Yang He(Research Institute of Metallurgical Resources and Environmental Engineering,School of Materials & Metallurgy,Northeastern University,Shenyang 110819,China)

【机构】 东北大学冶金资源与环境工程研究所；

【摘要】 以缓冷含钛高炉渣、硫酸铵和助熔剂为主要原料,通过加热熔融过程使其中的钛转化为易溶于水的形式,达到溶出钛的目的。探究了助熔剂的加入量和加热温度对钛溶出率的影响。实验结果表明,助熔剂的加入量和加热温度对钛回收率的影响大。适宜工艺条件为:缓冷含钛高炉渣与硫酸铵和助熔剂的质量比为1:8:0.67,加热温度为380℃并保温36min时钛的溶出率为75.9%,说明助熔剂的加入明显促进了钛的溶出。溶出钛后所得残渣中的主要成分为:硫酸钙（CaSO₄和CaSO₄·0.5H₂O）、钙钛矿、CaMgSi₂O₆、Al₂SiO₅和MgAl₂O₄。更多还原

【Abstract】 A melting reaction process was developed to transform the form of titanium in slow cooled titanium-bearing blast furnace slag into water-soluble one,such as TiOSO₄ by the treatment with ammonium sulfate and flux,through which to realize the purpose for dissolution of the titanium.The effects of quantities of the flux added and reaction temperature on the dissloving rate of titanium were investigated systemically.The experimental results showed that quantities of the flux added and reaction temperature had a great impact on the recovery of titanium.The optimum conditions of dissolution of the titanium from titanium-bearing blast furnace slag were that the mass ratio of slag to ammonium sulfate and flux was 1:8:0.67,the reaction temperature was 380℃,and the holding time was 36 min.Under these conditions the dissolving rate of titanium was up to 75.9%.The residue obtained after dissolving was mainly composed of CaSO₄·H₂O,CaSO₄·0.5H₂O,CaTiO₃,CaMgSi₂O₆, Al₂SiO₅ and MgAl₂O₄.This study was of significance of economic benefits for smelting enterprise in practice.更多还原