摘要
结合Ni-Co-Mn-H_(2)O的电位-pH图,制定锰渣分类治理,对硫化渣进行二次浆化、酸化氧化和中和处理,分离镍钴锰锌,制备三元前驱体的工艺方案。半工业化中试结果表明:温度为65~70℃、pH值为6.8~7.0时,Ni、Co和Mn的综合回收率大于90%。制备的三元前驱体产品中,Ni、Co和Mn含量之和大于61.5%,满足汽车动力电池制造的要求。
Combined with the potential-pH diagram of Ni-Co-Mn-H_(2)O,making the process plan of the manganese slag classification treatment,separation of Ni-Co-Mn-Zn by secondary slurry,acidizing oxidation and neutralization treatment of sulfuration slag and preparation ternary precursor.The results of semi-industrial pilot test showed that when the temperature was 65-70℃,the pH value was 6.8-7.0,the comprehensive recovery rate of nickel,cobalt and manganese was more than 90%.The sum of Ni,Co and Mn content in ternary precursor products was more than 61.5%,which meeting the requirements of automobile power battery manufacturing.
作者
董雄文
郑凯
彭天剑
苏向东
DONG Xiong-wen;ZHENG Kai;PENG Tian-jian;SU Xiang-dong(Guizhou Dalong Huicheng New Material Co.,Ltd.,Tongren,Guizhou 554001,China;School of Materials and Metallurgical Engineering,Guizhou Institute of Technology,Guiyang,Guizhou 550003,China;Key Laboratory of Light Metal Materials Processing Technology of Guizhou Province,Guiyang,Guizhou 550003,China)
出处
《电池》
CAS
北大核心
2021年第1期76-77,共2页
Battery Bimonthly
基金
贵州省科技计划项目(黔科合基础[2020]1Y220)
贵州省教育厅青年科技人才成长项目(黔教合KY字[2021]264)
贵州省流程性工业新过程工程研究中心[黔教合KY2017(021)]
贵州理工学院高层次人才启动项目(XJGC20190960)。
关键词
锰硫化渣
前驱体
回收
中试
三元正极材料
manganese sulfide slag
precursor
recycling
pilot
ternary cathode material
