摘要
钴铁合金酸浸液作为工业中常见的废液,含有大量的铁元素以及高附加值的钴元素,经过适当的除杂、分离和提纯处理后,铁元素可作为电池级磷酸铁的铁源,具有较大的应用潜力。本文系统介绍了钴铁酸浸液中钴离子与铁离子分离的主要技术方法,重点讨论了溶剂萃取法和沉淀分离法,溶剂萃取法以其选择性高、分离效率好而广泛应用,而沉淀分离法则因其操作简便、经济成本低备受关注。同时,本文还讨论了利用含铁废料制备高品质电池级磷酸铁的相关技术进展。指出了目前研究面临的问题并探讨了矿产资源回收利用的发展趋势,为实现资源的循环利用和锂离子电池等相关领域的发展开拓新思路,对促进循环经济和推动可持续发展具有重要意义。
Cobalt-iron alloy acid leachate,a common industrial waste,contains abundant iron and valuable cobalt.After appropriate purification,separation and refinement processes,iron can serve as a source of iron for battery-grade iron phosphate,offering substantial application potential.This paper systematically introduced the main technical methods for separating cobalt and iron ions from cobalt-iron alloy leachates with a focus on solvent extraction and precipitation separation.Solvent extraction was widely used due to its high selectivity and separation efficiency,while precipitation separation was favored for its simplicity and low economic cost.Additionally,this paper discussed advances in production high-quality battery-grade iron phosphate from iron-containing waste.This article identified current research challenges and discussed the evolving trends in mineral resource recycling,aiming to pioneer new strategies for resource circularity and to advance applications in fields such as lithium-ion batteries.These endeavors were pivotal for promoting a circular economy and fostering sustainable development.
作者
杜璇
王战宏
郑彬
许卫
王硕
石鹏
高国
DU Xuan;WANG Zhanhong;ZHENG Bin;XU Wei;WANG Shuo;SHI Peng;GAO Guo(School of Sensing Science and Engineering,School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;China Nonferrous Metals Innovation Institute(Tianjin)Co.,Ltd.,Tianjin 300112,China)
出处
《化工进展》
2025年第9期5327-5338,共12页
Chemical Industry and Engineering Progress
基金
中色创新研究院(天津)有限公司科技开发项目(2023KJZX036)。
关键词
钴铁酸浸液
分离
电池级磷酸铁
废物处理
回收
cobalt-iron acid leaching solution
separation
battery-grade iron phosphate
waste treatment
recovery
作者简介
第一作者:杜璇(1998-),女,硕士研究生,研究方向为二次电池电极材料的制备。E-mail:dx 0313@sjtu.edu.cn;通信作者:王战宏,正高级工程师,研究方向为金属材料的开发、成果转化及产业化建设。E-mail:Wangzhh@otic.com.cn;通信作者:高国,博士生导师,研究方向为无机纳米材料可控制备与应用。E-mail:guogao@sjtu.edu.cn。
