期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 252, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.seppur.2020.117435
关键词
Ionic liquid; Lithium-ion battery; Metal recovery; Separation process; Solvent extraction
资金
- Dutch Ministry of Economic Affairs
- Dutch Ministry of Infrastructure and Environment
- European Union Regional Development Fund
- Province of Fryslan
- Northern Netherlands Provinces
A separation method to selectively recover valuable metals (Co, Ni, Mn and Li) from synthetic spent lithium-ion battery cathodes leachate using a fatty-acid-based ionic liquid, tetraoctylphosphonium oleate [P-8888][oleate] is demonstrated. The investigated parameters for this selective separation and recovery process include extraction pH, contact time and composition of the regeneration solution. The benefit of using this ionic liquid is that > 99% of Co and > 99% of the Mn can be separated from the Ni and the Li by a two-stage extraction process. A subsequent single regeneration process separates the Co from the Mn. Finally, Ni and Li are completely separated in an additional regeneration process. An economic potential analysis concludes the paper, revealing that given the current cobalt price, the process outlined here shows a positive zero-order Economic Potential (bases on product sales and raw material cost) when using a 4 M HCl leaching solution and for leachates containing at least 4.5 g Co per liter.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据