两矿法浸出电解锰阳极渣中锰的研究  

Leaching of Manganese in Anode Residue from Manganese Electrolysis

作　　者：陈晓亮 王海峰[1,2,3] 尤晓宇 田佳瑜 王家伟 CHEN Xiao-liang;WANG Hai-feng;YOU Xiao-yu;TIAN Jia-yu;WANG Jia-wei(College of Materials and Metallurgy,Guizhou University,Guiyang 550025,Guizhou,China;Guizhou Provincial Key Laboratory of Metallurgical Engineering and Process Energy Conservation,Guiyang 550025,Guizhou,China;Guizhou Provincial Engineering Research Center for Battery Manganese Materials,Tongren 554300,Guizhou,Guiyang,China)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]贵州省冶金工程与过程节能重点实验室,贵州贵阳550025 [3]贵州省电池用锰材料工程技术研究中心,贵州铜仁554300

出　　处：《矿冶工程》2021年第3期92-94,共3页Mining and Metallurgical Engineering

基　　金：国家自然科学基金(51764006、51864012);贵州省科学合作计划项目([2019]1411、[2017]5788、[2018]5781、[2016]5302、[2019]2841)。

摘　　要：采用两矿法还原浸出电解锰阳极渣中的锰。以硫铁矿为还原剂、电解金属锰阳极渣作氧化剂,在硫酸溶液中实现电解锰阳极渣中锰的浸出。考察了硫铁矿与阳极渣质量比、硫酸与阳极渣中MnO_(2)摩尔比、反应时间、反应温度对锰浸出效果的影响。结果表明,最佳实验条件为:硫铁矿与阳极渣质量比2∶1、硫酸与阳极渣中MnO_(2)摩尔比1.8∶1、反应时间5.5 h、实验温度90℃、液固比6∶1,此时锰浸出率达到99.1%。The manganese in anode residue from manganese electrolysis was recovered by adopting reduction leaching process with two-ores method.It is shown that with pyrite as the reducing agent,the anode residue from manganese electrolysis as the oxidant,the leaching of manganese from the anode residue can be achieved in sulfuric acid solution.Effects of those factors,including mass ratio of pyrite to anode residue,molar ratio of sulfuric acid to MnO_(2) in the anode residue,as well as reaction time and temperature,on the manganese leaching rate were investigated.It is found that optimally with the mass ratio of pyrite to anode residue at 2∶1,the molar ratio of 1.8∶1 for sulfuric acid to MnO_(2) in the anode residue,the liquid-solid ratio of 6∶1,the leaching rate of Mn^(2+) can reach 99.1% after the reaction at 90℃ for 5.5 h.

关 键 词：两矿法 锰 电解锰阳极渣 浸出 硫铁矿 

分 类 号：TF111[冶金工程—冶金物理化学]