氢氧化钠法分离回收镍钴渣中锌钴试验研究  

Separation and Recovery of Zinc and Cobalt From Nickel-cobalt Slag Using Sodium Hydroxide

作　　者：刘鹏飞[1,2] 汤建伟 王保明[1] 刘咏[3] 化全县[3] 张亦飞[2] LIU Pengfei;TANG Jianwei;WANG Baoming;LIU Yong;HUA Quanxian;ZHANG Yifei(School of Ecology and Environment,Zhengzhou University,Zhengzhou 450001,China;Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学生态与环境学院,河南郑州450001 [2]中国科学院过程工程研究所,北京100190 [3]郑州大学化工学院,河南郑州450001

出　　处：《湿法冶金》2022年第5期415-418,共4页Hydrometallurgy of China

基　　金：国家自然科学基金资助项目(21276258)。

摘　　要：研究了用氢氧化钠从湿法炼锌镍钴渣中回收锌、钴。基于单因素试验,揭示了锌、钴浸出行为,考察了反应时间、温度、氢氧化钠质量浓度和液固质量比对锌、钴浸出率的影响。结果表明:用氢氧化钠浸出,在温度70℃、液固质量比10/1条件下,用质量浓度398 g/L的氢氧化钠溶液浸出镍钴渣0.5 h,锌、钴浸出率分别为93.5%和5.11%;浸出渣中锌、钴质量分数分别为4.80%和32.70%,锌、钴得到有效分离。The recovery of zinc and cobalt from nickel-cobalt slag using sodium hydroxide was studied.By single factor experiments,the leaching behavior of zinc and cobalt was revealed.The effects of reaction time,temperature,NaOH mass concentration and liquid-solid mass ratio on leaching of zinc and cobalt were examined.The results show that under the conditions of temperature of 70℃,liquidsolid mass ratio of 10/1,NaOH mass concentration of 398 g/L,and reaction time of 0.5 h,the leaching rate of zinc and cobalt are 93.5% and 5.11%,respectively.The contents of zinc and cobalt in the leaching residue are 4.80% and 32.70%,respectively.Zinc and cobalt in the nickel-cobalt slag are separated effectively using sodium hydroxide.

关 键 词：镍钴渣 氢氧化钠 锌 钴 分离 

分 类 号：TF803.21[冶金工程—有色金属冶金] TF803.23