摘要
通过对含铟铅烟尘性质和特点的研究分析,制定了二段硫酸浸出、P204萃取、硫酸洗涤、盐酸反萃、锌粉置换的提铟工艺流程。试验结果表明,初始浸出酸度200.gL-1、氧化剂用量1.25%、浸出温度95℃、浓酸浸出时间5 h、稀酸酸浸出时间2 h条件下铟浸出率91.5%;萃取剂P204浓度15%,相比O/A=1/15,萃取时间5 m in条件下萃取率98%;6N盐酸作为反萃剂,三级逆流反萃取反萃率100%;铟富集液锌粉置换,置换率大于99.7%。
According to the characteristics and properties of lead soot with indium,an indium extraction process with two stage vitriol leaching,P204 extraction,sulfuric acid washing,hydrochloric acid reverse extraction,replacing indium by zinc powder was established.Results showed that the leaching rate was 91.5% when the original acidity was 200 g·L-1,the quantity of oxidant was 1.25,the leaching temperature was 95 ℃,the concentrated acid leaching time was 5 h,the dilute acid leaching time was 2 h.Indium extraction ...
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2010年第3期413-419,共7页
Chinese Journal of Rare Metals
基金
郑州矿产综合利用研究所所控基金资助项目
关键词
铅烟尘
铟提取
浸出
萃取
lead soot
indium extraction
leaching
extraction
