摘要
基于硫酸锰与杂质离子硫酸盐在较高温度下溶解度的差异,采用结晶纯化法制备电池级硫酸锰。研究了结晶次数、结晶温度、保温时间对杂质含量和硫酸锰回收率的影响。在结晶温度180℃、保温时间8 h的优化条件下,工业级硫酸锰经过3次结晶纯化,杂质金属离子和氯离子含量均达到电池级硫酸锰的要求,硫酸锰回收率为79.9%。
Based on the different solubility between manganese sulfate and other sulfate impurities at higher temperature,industrial-grade manganese sulfate was successfully purified to be battery-grade by high-temperature crystallization.The influences of crystallization time,crystallization temperature and holding time on the impurity content and recovery rate of manganese sulfate were investigated.It was found that the industrial-grade manganese sulfate was subjected to three times of crystallization at the temperature of 180℃with holding time of 8 hours,resulting in the content of impurities of metallic ions and chloride ions up to the requirement for battery-grade manganese sulfate,with the recovery rate of manganese sulfate reaching 79.9%.
作者
何雨林
李富杰
罗志虹
罗鲲
HE Yu-lin;LI Fu-jie;LUO Zhi-hong;LUO Kun(College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, Guangxi, China;School of Materials Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2019年第3期85-88,共4页
Mining and Metallurgical Engineering
基金
广西自然科学基金(2015GXNSFBA139220
2016GXNSFAA380107)
关键词
硫酸锰
工业硫酸锰
电池级硫酸锰
高温结晶
manganese sulfate
industrial-grade manganese sulfate
battery-grade manganese sulfate
high-temperature crystallization
作者简介
何雨林(1993-),男,四川巴中人,硕士研究生,主要研究方向为新能源储能材料;通讯作者:罗鲲(1966-),男,辽宁沈阳人,教授,博士研究生导师,主要从事新能源储能材料研究。
