混合酸浸法分离含钛高炉渣中的主要成分  

Separation of the Main Components from Ti-bearing Blast Furnace Slag by Mixed Acid Leaching Method

作　　者：李晨[1] 邱克辉[1] 张佩聪[1] 曹磊[1] 

机构地区：[1]成都理工大学材料科学技术研究所,四川成都610059

出　　处：《过程工程学报》2011年第5期772-776,共5页The Chinese Journal of Process Engineering

基　　金：四川省科技攻关重点基金资助项目(编号:08GY0082)

摘　　要：根据含钛高炉渣的结构和组分的化学性质特点,采用低温盐酸硫酸混合酸浸法将高炉渣中的钛组分富集于滤渣中,钙、铝、镁、铁等酸溶性组分富集于滤液中,研究了混合酸浓度、盐酸/硫酸配比、反应温度等对组分分离效果的影响.结果表明,采用混合酸浓度为6mol/L、盐酸与硫酸体积比为3:1的混合酸、酸渣质量比为1.2:1条件下,混合酸与含钛高炉渣在80℃反应5h后,滤渣中TiO2含量可达30%以上.Based on the structural and composition characteristics of titanium-bearing blast furnace slag,a low temperature mixed acid leaching method was used to separate acid-soluble components from the slag into the filtrate.So the titanium was enriched relatively,the resulting titanium-rich materials could be used for industrial production.The influences of the experimental factors（mixed acid concentration,hydrochloric acid/sulfuric acid ratio,reaction time,reaction temperature and mass ratio of slag to mixed acid） on separation of its components were investigated.The results showed that an enriched residue with over 30% TiO2 could be obtained by the mixed acid leaching method and the optimum conditions were mixed acid concentration 6 mol/L（volume ratio of HCl/H2SO4=3：1）,at 80℃ for 5 h,and mass ratio of acid to the slag at 1.2：1.

关 键 词：含钛高炉渣 酸解 混合酸 二氧化钛 富钛料 

分 类 号：TF111[冶金工程—冶金物理化学]