锰渣脱硫制硫酸锰技术在电解锰行业的应用  

Application of manganese sulfate preparation technology by manganese slag desulfurization in electrolytic manganese industry

作　　者：黄文凤 孙冬 章慧 郭家秀[2,3] HUANG Wenfeng;SUN Dong;ZHANG Hui;GUO Jiaxiu(Sichuan Entech Environment Technology Co.Ltd.,Mianyang 621000,China;College of Architecture and Environment,Sichuan University,Chengdu 610065,China;National Engineering Research Center of Flue Gas Desulfurization,Chengdu 610065,China)

机构地区：[1]四川恒泰环境技术有限责任公司,四川绵阳621000 [2]四川大学建筑与环境学院,四川成都610065 [3]国家烟气脱硫工程技术研究中心,四川成都610065

出　　处：《化工环保》2020年第6期675-678,共4页Environmental Protection of Chemical Industry

基　　金：中国工程物理研究院应用技术开发项目(JM201516)。

摘　　要：介绍了某电解锰企业锰渣煅烧含高浓度SO2烟气的资源化处理路线,阐述了氧化锰矿浆烟气脱硫制MnSO4技术的工艺设计。该烟气脱硫制MnSO4装置运行稳定,尾气中SO2质量浓度为32.1~51.9 mg/m^3,达到排放设计要求,脱硫装置产生的MnSO4浆液中Mn^2+质量浓度为(40±1)g/L,连二硫酸锰质量浓度小于5 g/L,满足电解锰生产要求。This paper introduces the resource reuse route of high concentration SO2 flue gas produced incalcination of manganese slag in an electrolytic manganese enterprise,and expounds theprocess design for MnSO4 productionby flue gas desulfurization with manganese oxideore slurry.The MnSO4 productiondevice is running stable,and the SO2 mass concentration in the outlet gas is 32.1-51.9 mg/m^3,which meets the design requirement for SO2 emission.The mass concentration of Mn^2+and MnS2O6 in the MnSO4 slurry produced inthe desulfurization device is(40±1)g/L and less than 5 g/L,respectively,which meets the requirements for electrolytic manganese production.

关 键 词：锰渣 烟气脱硫 电解锰 硫酸锰 

分 类 号：X511[环境科学与工程—环境工程]