Selective hydrogen reduction of binary iron-cobalt chlorides
李浩 1郭学益 1施尧 1王超 1于大伟 1田庆华1
扫码查看
点击上方二维码区域，可以放大扫码查看
作者信息
1. School of Metallurgy and Environment,Central South University,Changsha 410083,China;National and Regional Joint Engineering Research Center of Nonferrous Metal Resource Recycling,Changsha 410083,China
Global demand for cobalt is proliferating with the booming usage and consumption of Li-ion batteries in energy storage applications.With high cobalt content,cobalt white alloy has been an important intermediate product for cobalt production.In this paper,a method of hydrochlorination roasting-hydrogen reduction of cobalt white alloy is proposed to separate the valuable metals in cobalt white alloy.The hydrochlorination roasting process achieves the separation of copper and silicon from the cobalt white alloy and produces iron-cobalt binary chloride.This paper focuses on the effects of reduction temperature,reduction time,and hydrogen concentration during the hydrogen reduction of iron-cobalt binary chloride,with the aim of separating the two metals.The Co/Fe mass ratio in the reduction product is 10.71,with the cobalt content usually above 90 wt%under optimal conditions.The reduction product is a micro-fibrous Co-rich alloy exhibiting a significant specific surface area,which may have promising applications in catalysis.A mechanism based on chemical vapor deposition has been proposed to explain the formation of micro-fibrous products.
关键词
钴白合金/氢气还原/选择性分离/纤维状金属钴
Key words
cobalt white alloy/hydrogen reduction/selective separation/fibrous cobalt
引用本文复制引用
基金项目
National Natural Science Foundation of China(52274413)
维普
万方数据