铅锌烟尘直接硫酸浸出工艺研究  

Process Study of Direct Leaching of Pb-Zn Bearing Dust with Sulfuric Acid

作　　者：孙红燕[1] 森维 黄兆龙[1] 姜艳[1] 杨昌赢 孙成梅[1] 

机构地区：[1]红河学院理学院,云南蒙自661100 [2]云南锡业股份有限公司,云南个旧661000

出　　处：《有色金属（冶炼部分）》2014年第1期5-7,11,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：云南省教育厅科学研究基金一般项目(2013Y068);红河学院"化学"云南省硕士点建设学科开放基金重点项目(HXZ1308)

摘　　要：采用硫酸直接浸出铅锌烟尘,考察硫酸浓度、液固比、浸出时间和温度对锌浸出率及铅入渣率的影响。结果表明,在下述优化浸出条件下,锌浸出率达93.55%,铅入渣率92.01%:硫酸浓度175g/L、液固比6∶1、浸出时间60min、浸出温度60℃。Pb-Zn bearing dust was directly leached by sulfuric acid. The effects of H2 SO4 concentration, ratio of liquid to solid （L/S）, leaching time and temperature on zinc leaching rate and rate of lead going into leaching residue were investigated. The results show that the zinc leaching rate is 93.55% and the rate of lead going into leaching residue is 92.01% under the optimum conditions including H2SO4 concentration of 175 g/L, L/S=6 ： 1, leaching duration of 60 min and leaching temperature of 60℃.

关 键 词：铅锌烟尘 硫酸 浸出 浸出率 

分 类 号：TF812[冶金工程—有色金属冶金] TF813