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.
出处
《有色金属（冶炼部分）》
CAS
北大核心
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)
关键词
炼锡废渣
锡
回收
酸浸
tin-smelting waste slag
tin
recycling
acid leaching
