| 废旧三元正极材料葡萄糖还原焙烧优先提锂工艺 |
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| 引用本文： | 陈菁,李拓夫. 废旧三元正极材料葡萄糖还原焙烧优先提锂工艺[J]. 有色金属(冶炼部分), 2024, 0(5): 46-52 |
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| 作者姓名： | 陈菁 李拓夫 |
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| 作者单位： | 矿冶科技集团,矿冶科技集团有限公司 |
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| 基金项目： | 矿冶科技集团有限公司青年科技创新基金（04-2339）；矿冶科技集团有限公司科研基金重点项目(02-2138) |
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| 摘 要： | 以废弃三元锂离子电池正极材料(spent-NCM)为研究对象，葡萄糖(C6H12O6)为焙烧剂，采用焙烧—水浸工艺实现锂的选择性优先浸出。结果表明，在600℃焙烧90 min、C6H12O6与spent-NCM质量比25%、浸出液固比20 mL/g的条件下，spent-NCM中的有价金属元素转变为水溶性的Li2CO3和不溶性的Ni、Co和MnO,焙烧产物经水浸可选择性优先分离Li, Li的浸出率为95.62%。
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| 关 键 词： | 废旧锂离子电池 还原焙烧 优先提锂 |
| 收稿时间： | 2023-12-13 |
| 修稿时间： | 2023-12-26 |
Priority Recovery of Lithium from Spent Ternary Cathode Materials by Reduction Roasting with Glucose |
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| CHEN Jing and LI Tuofu. Priority Recovery of Lithium from Spent Ternary Cathode Materials by Reduction Roasting with Glucose[J]. Nonferrous Metals(Extractive Metallurgy), 2024, 0(5): 46-52 |
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| Authors: | CHEN Jing and LI Tuofu |
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| Affiliation: | BGRIMM Technology Group, |
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| Abstract: | Lithium was selectively and preferentially extracted from ternary cathode materials of spent ternary lithium-ion batteries (spent-NCM) by roasting with glucose (C6H12O6) - water leaching process. Under the optimum roasting conditions of roasting at 600 ℃ for 90 min, mass ratio of C6H12O6 to spent-NCM of 25%, and L/S ratio of 20 mL/g, the valuable metal elements in spent-NCM are transformed into water-soluble Li2CO3 and water-insoluble Ni, Co and MnO respectively. Li can be selectively and preferentially separated by water leaching with leaching rate of 95.62%. |
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| Keywords: | spent ternary lithium-ion batteries reduction roasting priority lithium recovery |
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