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| Extraction of Lithium from Aluminum Scrap Electrolyte by Low-Temperature Roasting with Aluminum Chloride and Water Leaching |
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Received:November 28, 2024
Revised:December 20, 2024
Accepted:December 23, 2024
Published Online:March 18, 2025
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| DOI：doi：10.20237/j.issn.1007-7545.2025.04.024 |
| KeyWord:aluminum scrap electrolyte；low-temperature roasting；acid-free；lithium extraction；water leaching |
| Author | Institution |
| WU Kun |
南昌航空大学 |
| CUI Shuiqing |
南昌航空大学 |
| WAN Huizhen |
南昌航空大学 |
| ZHANG Yuqi |
南昌航空大学 |
| FENG Jiahui |
南昌航空大学 |
| LI Zipan |
南昌航空大学 |
| CHEN Zongxiang |
南昌航空大学 |
| XIAO Yuxin |
南昌航空大学 |
| WANG Yijia |
南昌航空大学 |
| WANG Zhongbing |
南昌航空大学 |
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| Abstract: |
| Lithium was extracted from waste aluminum electrolyte via low-temperature roasting with aluminum chloride and water leaching process without acid consumption. The effects of roasting conditions and water leaching conditions on the leaching rate of lithium were investigated. The results show that the leaching rate of lithium is 92.8% under the optimal conditions including aluminum chloride addition of 0.9 g/g, roasting temperature of 150 ℃, roasting time of 120 min, water leaching temperature of 30 ℃, liquid-solid ratio of 6 mL/g, and leaching time of 30 min. The fluoride and aluminum are enriched in the leaching residue in the form of Al2(OH)(6—x)Fx?H2O and can be recovered and prepared into cryolite through alkaline leaching, which realizes the resource utilization of aluminum scrap electrolyte. |
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