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用电解锰阳极泥和含SO_2工业尾气制备硫酸锰
引用本文:刘建本,陈上.用电解锰阳极泥和含SO_2工业尾气制备硫酸锰[J].化工环保,2009,29(6).
作者姓名:刘建本  陈上
作者单位:吉首大学,化学化工学院,湖南,吉首,416000
基金项目:湖南省教育厅科学研究项目 
摘    要:以电解锰阳极泥与电解锌生产中产生的含SO_2尾气为原料,经过反应、浸出、浸出液两次净化和浓缩结晶制备硫酸锰,考察了反应时间、含SO_2尾气的流量及反应温度对Mn~(4+)转化率的影响.实验结果表明:在反应时间45 min、反应温度20~30 ℃、含SO_2尾气流量16 L/min的条件下,Mn~(4+)转化率达90%以上;尾气中SO_2利用率随尾气流量增加而降低;所得MnSO_4·H_2O产品质量达到GB1622-86<工业级硫酸锰标准>.

关 键 词:电解锰  阳极泥  二氧化硫  工业尾气  硫酸锰

Preparation of Manganese Sulfate Using Anode Slurry from Electrolytic Manganese Production and Industrial Exhaust Gas Containing SO_2
Liu Jianben,Chen Shang.Preparation of Manganese Sulfate Using Anode Slurry from Electrolytic Manganese Production and Industrial Exhaust Gas Containing SO_2[J].Environmental Protection of Chemical Industry,2009,29(6).
Authors:Liu Jianben  Chen Shang
Abstract:Using anode slurry from electrolytic manganese production and exhaust gas containing SO_2 from electrolytic zinc production as raw materials, manganese sulfate was prepared by reaction, leaching, twice purification of leaching solution and crystallization. The effects of reaction time, gas flow and reaction temperature on the Mn~(4+) conversion rate were studied. The experimental results show that: Under the conditions of reaction time 45 min, reaction temperature 20-30 ℃ and gas flow 16 L/min, Mn~(4+) conversion rate can reach over 90%; The utilization efficiency of SO_2 in the exhaust gas will decrease with the increase of gas flow; The quality of the product MnSO_4·H_2O can meet the standard of GB1622-86 for industrial product.
Keywords:electrolytic manganese  anode slurry  sulfur dioxide  industrial exhaust gas  manganese sulfate
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