湿法冶金2025，Vol.44Issue(4)：467-475,9.DOI:10.13355/j.cnki.sfyj.2025.04.005
双酮/磷酸酯萃取体系从废旧锂电池正极浸出液中分离有价元素试验研究
Separation of Valuable Elements from Positive Leaching Solution of Spent LIBs by β-diketone/Phosphate Extraction System
摘要
Abstract
Extraction and separation of valuable elements from the positive leaching solution of spent lithium-ion batteries by β-diketone/phosphate extraction system was studied.The optimal conditions for the extraction and separation of cobalt,nickel,manganese,and lithium were determined through equilibrium extraction.The results show that the β-diketone/phosphate extraction system can effectively separate cobalt,nickel,manganese,and lithium from the positive leaching solution of spent lithium-ion batteries by controlling the kinetics.Under optimized conditions,the extraction rate of cobalt,nickel,and manganese can reach 99％,and the yield of lithium can reach more than 95％.The method realizes the separation and recovery of cobalt,nickel,manganese and lithium by a single extraction system,which can provide a new process route for the recovery of waste ternary lithium batteries.关键词
废旧锂电池/溶剂萃取/双酮/磷酸酯萃取体系/钴/镍/锰/锂Key words
spent LIBs/solvent extraction/β-diketone/phosphate system/cobalt/nickel/manganese/lithium分类
矿业与冶金引用本文复制引用
胡康,张利诚,马春梅,李丽娟..双酮/磷酸酯萃取体系从废旧锂电池正极浸出液中分离有价元素试验研究[J].湿法冶金,2025,44(4):467-475,9.基金项目
国家自然科学基金青年项目(22208359) （22208359）
青海省应用基础研究项目(2024-ZJ-703) （2024-ZJ-703）
中科院青年创新促进会项目(2022438). （2022438）
