利用转炉尘泥制备聚合硫酸铁的研究  

Preparation of polymeric ferric sulfate with converter residue

作　　者：曾丹林[1] 刘胜兰[1] 王光辉[1] 马亚丽[1] 苏敏[1] 龚晚君[1] 严铁军[1] 

机构地区：[1]武汉科技大学化学工程与技术学院,湖北省煤转化与新型炭材料重点实验室,湖北武汉430081

出　　处：《现代化工》2013年第12期67-69,共3页Modern Chemical Industry

基　　金：武汉市科技攻关计划(201060723317);武汉科技大学校基金(2010XZ012);武汉科技大学绿色制造与节能减排科技研究中心开放基金(B1014);武汉科技大学冶金矿产资源高效利用与造块湖北省重点实验室开放基金

摘　　要：以转炉尘泥为原料,采用混合酸酸浸法浸出铁,探讨了硫酸浓度、反应温度、反应时间、盐酸用量对铁浸出率的影响。将浸出液经铁粉还原、双氧水氧化工艺制备聚合硫酸铁,并对制得的聚合硫酸铁进行了一系列的分析和表征。实验结果表明,硫酸质量分数为70%,反应温度为80℃,反应时间为120 min,盐酸用量为15 mL时,铁的浸出率可达95%以上。Ferric iron is leached by mixed acid leaching method from converter residue. The effects of the concentration of sulfuric acid, reaction temperature, reaction time and the dosage of hydrochloric acid on the leaching efficiency are discussed. Then the leaching solution is restored by iron powder and oxidized by hydrogen peroxide to produce polymeric ferric sulfate. A series of analysis and characterization are conducted for the obtained polymeric ferric sulfate. The optimal experimental results are shown as follows： 70% of sulfuric acid concentration, 80C of reaction temperature, 120 min of reaction time and 15 mL of hydrochloric aicd concentration. The leaching rate of iron can come up to 95 %.

关 键 词：转炉尘泥 混合酸酸浸法 聚合硫酸铁 

分 类 号：TQ0[化学工程]