炼锡废渣中锡的湿法富集工艺研究  

Study on Tin Enrichment by Wet Process from Tin-smelting Waste Slag

作　　者：于聪[1] 童霏[1] 王慧慧[1] 孙杨铖 葛明敏[1] 周全法[1] 

机构地区：[1]江苏理工学院,江苏省贵金属深加工技术及应用重点建设实验室,江苏常州213001

出　　处：《有色金属（冶炼部分）》2015年第7期17-20,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家科技支撑计划项目(2014BAC03B06);江苏省科技支撑计划项目(BE2012645)

摘　　要：以电弧炉炼锡产生的废渣为原料,盐酸为浸出剂,在温度40℃、液固比25∶1(mL/g)、搅拌速度250r/min的条件下进行锡的富集。废渣中的锡含量由1.82%富集到13.61%,富集后的废渣再经酸浸、锌置换处理后,最终获得纯度98%的金属锡,锡回收率达99.5%,硅组分和钙组分的脱除率分别达到83.42%和94.21%,可以作为副产物出售,实现二次资源化。Tin was enriched from tin-smelting waste slag in electric arc furnace with hydrochloric acid as leaching agent under the conditions including temperature of 40 ℃,ratio of liquid to solid of 25∶1（mL/g）,and stirring rate of 250r/min.The results show that tin content in slag is enriched from 1.82% to13.61%,and metal tin with purity of 98%is recovered with tin recovery of 99.5%from enriched slag by further acid-leaching and zinc replacement.The removal rate of silica and calcium,which can be sold as byproducts,is 83.42% and 94.21%respectively.

关 键 词：炼锡废渣 锡 回收 酸浸 

分 类 号：TF814[冶金工程—有色金属冶金]