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Separation of Valuable Elements from Positive Leaching Solution of Spent LIBs by β-diketone/Phosphate Extraction System
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Kang HU1, 2, 3, Licheng ZHANG2, 3, Chunmei MA2, 3, Lijuan LI2, 3
Hydrometallurgy of China | 2025, 44(4) : 467 - 475
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Hydrometallurgy of China | 2025, 44(4): 467-475
• Experiment Research •
Separation of Valuable Elements from Positive Leaching Solution of Spent LIBs by β-diketone/Phosphate Extraction System
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Kang HU1, 2, 3, Licheng ZHANG2, 3, Chunmei MA2, 3, Lijuan LI2, 3
Affiliations
  • 1 Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,China
  • 2 Qinghai Engineering and Technology Research Center of Comprehensive Utilization of Salt Lake Resources,Xining 810008,China
  • 3 School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
Published: 2025-08-20 doi: 10.13355/j.cnki.sfyj.2025.04.005
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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.

spent LIBs  /  solvent extraction  /  β-diketone/phosphate system  /  cobalt  /  nickel  /  manganese  /  lithium
Kang HU, Licheng ZHANG, Chunmei MA, Lijuan LI. Separation of Valuable Elements from Positive Leaching Solution of Spent LIBs by β-diketone/Phosphate Extraction System[J]. Hydrometallurgy of China, 2025 , 44 (4) : 467 -475 . DOI: 10.13355/j.cnki.sfyj.2025.04.005
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Year 2025 volume 44 Issue 4
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doi: 10.13355/j.cnki.sfyj.2025.04.005
  • Receive Date：2025-02-25
  • Online Date：2025-09-09
  • Published：2025-08-20
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  • Received：2025-02-25
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Affiliations
    1 Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,China
    2 Qinghai Engineering and Technology Research Center of Comprehensive Utilization of Salt Lake Resources,Xining 810008,China
    3 School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
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https://castjournals.cast.org.cn/joweb/sfyj/EN/10.13355/j.cnki.sfyj.2025.04.005
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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