Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
磷酸-谷胱甘肽体系浸出废旧三元锂离子电池 正极材料中有价金属. |
| Alternate Title: |
Extraction of Valuable Metals from Waste Ternary Lithium-ion Battery Cathode Materials Using Phospho-glutathione System. |
| Συγγραφείς: |
丁思懿1, 黄魁1,2, 翟睿娇1, 李汝桂1, 毛珊瑾1, 李佳忆1, 董海丽1,2 |
| Πηγή: |
Nonferrous Metals. Mar2025, Vol. 15 Issue 3, p506-513. 8p. |
| Θεματικοί όροι: |
*Chemical process control, *Chemical reactions, *Arrhenius equation, *Activation energy, *Glutathione |
| Abstract (English): |
The phospho-glutathione system was used to study how phosphate and glutathione concentrations, leaching temperature, solid-liquid ratio, and leaching time affect the extraction of lithium, nickel, cobalt, and manganese from discarded ternary lithium-ion battery cathodes. The results show that under the conditions of 1 mol/L phosphate, 0. 03 mol/L glutathione, 55 ℃ leaching temperature, 35 g/L solid-liquid ratio and 60 min leaching time, the leaching rates of lithium, nickel, cobalt and manganese are above 98%. Glutathione play a role in reducing metal valence and releasing H+ to promote leaching during the reaction. The apparent activation energies of lithium, nickel, cobalt and manganese are calculated in the range of 37~42 kJ/mol by Arrhenius equation, indicating that the leaching process is controlled by chemical reaction. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
采用磷酸 - 谷胱甘肽体系浸出废旧三元锂离子电池正极材料中的有价金属, 探究磷酸浓度、谷胱甘肽浓度、浸出温度、固液比 和浸出时间对锂、镍、钴和锰浸出率的影响。结果表明, 在磷酸 1 mol/L、谷胱甘肽 0. 03 mol/L、浸出温度 55 ℃、固液比 35 g/L、浸出 时间60 min条件下, 锂、镍、钴和锰的浸出率均达到98%以上。谷胱甘肽在反应过程中起到了降低金属价态和释放H+ 促进浸出的作用。 采用收缩未反应核模型对各金属浸出率做动力学拟合, 由阿伦尼乌斯方程计算出锂、镍、钴和锰的表观活化能在 37~42 kJ/mol, 说明 浸出过程受化学反应控制。 [ABSTRACT FROM AUTHOR] |
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