| 酸浸和沉淀组合工艺回收废锂离子电池中的钴和锂(英文) |
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| 引用本文： | 朱曙光,贺文智,李光明,周旭,张骁君,黄菊文. 酸浸和沉淀组合工艺回收废锂离子电池中的钴和锂(英文)[J]. 中国有色金属学会会刊, 2012, 22(9): 2274-2281. DOI: 10.1016/S1003-6326(11)61460-X |
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| 作者姓名： | 朱曙光 贺文智 李光明 周旭 张骁君 黄菊文 |
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| 作者单位： | 同济大学环境科学与工程学院,污染控制与资源化研究国家重点实验室;安徽建筑工业学院环境与能源工程学院 |
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| 基金项目： | Project (51078286) supported by the National Natural Science Foundation of China;Project (2008BAC46B02) supported by the National Key Technologies R&D Program of China;Project (2011SQRL110) supported by the Excellent Youth Foundation of Anhui Education Department, China;Project (KJ2011z053) supported by the Natural Science Foundation of Anhui Education Department, China |
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| 摘 要： | 基于废锂离子电池中的金属在不同价态时的化学行为差异,通过化学精制从废弃锂离子电池中获取高附加值的钴锂化学产品。将从正极中分离出来的活性物质溶解在硫酸和过氧化氢溶液中,加入(NH4)2C2O4生成CoC2O4·2H2O 沉淀。在获得CoC2O4·2H2O 后,加 Na2CO3获得Li2CO3沉淀。实验结果表明:96.3% 的Co和87.5%的Li溶解在2mol/LH2SO4和2.0%H2O2(体积分数)溶液中,并且有94.7 %的Co和71.0%的Li以CoC2O4·2H2O和Li2CO3的形式沉淀下来。
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| 关 键 词： | 废锂离子电池 回收 浸出 沉淀 |
| 收稿时间： | 2011-09-23 |
Recovery of Co and Li from spent lithium-ion batteries by combination method of acid leaching and chemical precipitation |
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| ZHU Shu-guang,HE Wen-zhi,LI Guang-ming,ZHOU Xu,ZHANG Xiao-jun,HUANG Ju-wen. Recovery of Co and Li from spent lithium-ion batteries by combination method of acid leaching and chemical precipitation[J]. Transactions of Nonferrous Metals Society of China, 2012, 22(9): 2274-2281. DOI: 10.1016/S1003-6326(11)61460-X |
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| Authors: | ZHU Shu-guang HE Wen-zhi LI Guang-ming ZHOU Xu ZHANG Xiao-jun HUANG Ju-wen |
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| Affiliation: | 1. State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; 2. School of Environment and Energy Engineering, Anhui University of Architecture, Hefei 230022, China |
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| Abstract: | Cathode material of spent lithium-ion batteries was refined to obtain high value-added cobalt and lithium products based on the chemical behaviors of metal in different oxidation states. The active substances separated from the cathode of spent lithium-ion batteries were dissolved in H2SO4 and H2O2 solution, and precipitated as CoC2O4·2H2O microparticles by addition of (NH4)2C2O4. After collection of the CoC2O4·2H2O product by filtration, the Li2CO3 precipitates were obtained by addition of Na2CO3 in the left filtrate. The experimental study shows that 96.3% of Co (mass fraction) and 87.5% of Li can be dissolved in the solution of 2 mol/L H2SO4 and 2.0% H2O2 (volume fraction), and 94.7% of Co and 71.0% of Li can be recovered respectively in the form of CoC2O4·2H2O and Li2CO3. |
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| Keywords: | spent lithium-ion batteries recovery leaching precipitation |
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