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Recovering of Cobalt from Waste Lithium-ion Batteries by Ammonia Leaching—Ion Exchange Resin Adsorption Method
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Jinrong LI1, Xiang LIU2, Qingxi HU1, Zepeng LI1, Wei CHEN1, Yongjin CHEN1
Hydrometallurgy of China | 2025, 44(4) : 448 - 458
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Hydrometallurgy of China | 2025, 44(4): 448-458
• Experiment Research •
Recovering of Cobalt from Waste Lithium-ion Batteries by Ammonia Leaching—Ion Exchange Resin Adsorption Method
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Jinrong LI1, Xiang LIU2, Qingxi HU1, Zepeng LI1, Wei CHEN1, Yongjin CHEN1
Affiliations
  • 1 State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510641,China
  • 2 Guangzhou Maiyuan Technology Co.,Ltd.,Guangzhou 510700,China
Published: 2025-08-20 doi: 10.13355/j.cnki.sfyj.2025.04.003
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In view of the problem of secondary environmental pollution caused by acid leaching system for recycling waste lithium cathode materials,a green leaching system for obtaining cobalt carbonate with high efficiency was studied.The cobalt from waste lithium batteries was recovered by ammonia leaching—ion exchange resin method.The results show that under the conditions of ammonia concentration of 5 mol/L,NH4Cl concentration of 0.7 mol/L,(NH4)2SO3 concentration of 0.5 mol/L,temperature of 140 ℃,liquid volume to solid mass ratio of 20 g/1 L and reaction time of 50 min,the leaching rates of Co,Li and Ni are 88.0%,90.0% and 92.5%,respectively.Under the condition of temperature of 20 ℃ and flow rate of 1 mL/min,150 mL of ammonia leaching solution is selectively adsorbed by 40 g CH-90 resin,and the adsorption capacity of Co is 9.06 mg/g.FT-IR,SEM and XPS characterization results show that cobalt is exchanged with Na+ in the functional group of the resin and adsorbed on the resin in the form of [Co(NH3)i]2+.CoCO3 products with purity exceeding 97.5% are obtained by using sodium carbonate precipitation to recover cobalt carbonate,after elution,precipitation and impurity removal.

lithium battery  /  cobalt carbonate  /  ammonia leaching  /  ion exchange resin  /  adsorption  /  mechanism
Jinrong LI, Xiang LIU, Qingxi HU, Zepeng LI, Wei CHEN, Yongjin CHEN. Recovering of Cobalt from Waste Lithium-ion Batteries by Ammonia Leaching—Ion Exchange Resin Adsorption Method[J]. Hydrometallurgy of China, 2025 , 44 (4) : 448 -458 . DOI: 10.13355/j.cnki.sfyj.2025.04.003
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Year 2025 volume 44 Issue 4
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doi: 10.13355/j.cnki.sfyj.2025.04.003
  • Receive Date：2025-01-23
  • Online Date：2025-09-09
  • Published：2025-08-20
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  • Received：2025-01-23
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    1 State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510641,China
    2 Guangzhou Maiyuan Technology Co.,Ltd.,Guangzhou 510700,China
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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
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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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