文献类型：期刊文献

中文题名：用SO_2-H_2SO_4-H_2O体系浸出电解锰阳极泥试验研究

英文题名：Leaching of Electrolytic Manganese Anode Slimes in SO_2-H_2SO_4-H_2O System

作者：黎应芬 李祥 叶华 孔祥忠

第一作者：黎应芬

机构：[1]贵州理工学院材料与冶金工程学院;[2]中南大学化学与化工学院

第一机构：贵州理工学院材料与冶金工程学院

年份：2017

卷号：36

期号：6

起止页码：473-475

中文期刊名：湿法冶金

外文期刊名：Hydrometallurgy of China

收录：北大核心:【北大核心2014】；

语种：中文

中文关键词：阳极泥;二氧化硫;硫酸;锰;铅;硒;浸出

外文关键词：anode slime; sulfur dioxide;sulfuric acid ; manganese; lead ; selenium;leaching

摘要：研究了用SO_2-H_2SO_4-H_2O液相体系还原浸出电解锰阳极泥,考察了SO_2流量、H_2SO_4质量浓度、温度、浸出时间对锰、硒、铅浸出率及浸出液中连二硫酸锰质量浓度及浸出渣中铅质量分数的影响。结果表明:在固液体积质量比1∶5、SO_2流量100mL/min、硫酸质量浓度36g/L、温度25℃条件下浸出60min,锰浸出率为95%,硒浸出率为83%,铅浸出率为0.3%,浸出液中连二硫酸锰在总锰中占比为5%,尾渣中铅质量分数为28.2%,浸出效果较好。
Electrolytic manganese anode slimes were reduction leached in SO2-H2SO4-H2O system.The effects of SO2 flow,H2SO4 concentration,temperature and reaction time on the leaching of manganese,lead and selenium,the concentration of manganese dithionate in the leaching solution,and lead mass fraction in the leaching residue were examined.The results show that the leaching of manganese,selenium and lead are 95%,83% and 0.3% under the conditions of liquid-to-solid rate of 5∶1,SO2 flow of 100 mL/min,H2 SO4 concentration of 36 g/L,temperature of 25 ℃,and reaction time of 60 min.In addition,manganese dithionate in total manganese accounts for 5%,and lead mass fraction in leaching residue is 28.2%.The good leaching effects is achieved.