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投稿时间:2023-12-13 修订日期:2023-12-26 录用日期:2023-12-28 网络发布日期:2024-04-16
投稿时间:2023-12-13 修订日期:2023-12-26 录用日期:2023-12-28 网络发布日期:2024-04-16
中文摘要: 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%。
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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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)
| 作者 | 单位 | |
| 陈菁* | 矿冶科技集团 | chenjing@bgrimm.com |
| 李拓夫 | 矿冶科技集团有限公司 |
| Author Name | Affiliation | |
| CHEN Jing | BGRIMM Technology Group | chenjing@bgrimm.com |
| LI Tuofu |
引用文本:
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(5):46-52.
CHEN Jing,LI Tuofu.Priority Recovery of Lithium from Spent Ternary Cathode Materials by Reduction Roasting with Glucose[J].Nonferrous Metals (Extractive Metallurgy),2024(5):46-52.
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(5):46-52.
CHEN Jing,LI Tuofu.Priority Recovery of Lithium from Spent Ternary Cathode Materials by Reduction Roasting with Glucose[J].Nonferrous Metals (Extractive Metallurgy),2024(5):46-52.

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