摘要
高钛型高炉渣中的TiO2含量达20%~23%,是宝贵的二次资源。利用TiO2对盐酸的稳定性,将炉渣中的酸溶性物质酸解后固液分离得到钛渣,并分析原料粒度、酸渣比、反应温度、反应时间对钛渣中TiO2含量的影响,得到较佳的酸解反应条件。通过XRD图谱分析可知,高炉渣中A l,Mg,Fe等元素的化合物物相均已完全酸解,产品钛渣中TiO2含量达48%以上。该工艺为综合利用高钛型高炉渣提供了一种有价值的新途径。
Ti-bearing blast-furnace slag contained 20%~23% of titania approximately was a valuable secondary resource.Ti-enriched slag was prepared through hydrolysis-acidification of the Ti-bearing blast-furnace slag based on the reactive differences of titania and other elements to acid.Moreover,the effects of the particle size,molar ratio of acid to Ti-bearing slag,reaction temperature and time on the concentration of Ti-enriched slag was researched in detail,and an optimal condition for hydrolysis-acidification ob...
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2010年第3期467-470,共4页
Chinese Journal of Rare Metals
基金
四川省应用技术研究与开发项目(07GG002-003)资助
关键词
高炉渣
二氧化钛
钛渣
酸解
Ti-bearing blast-furnace slag
titania
Ti-enriched slag
hydrolysis-acidification
