Recovery of Cobalt from Spent Lithium-Ion Mobile Phone Batteries Using Liquid-Liquid Extraction

被引:26
作者
Quintero-Almanza, Daniel [1 ]
Gamino-Arroyo, Zeferino [1 ]
Eugenia Sanchez-Cadena, Lorena [2 ]
Israel Gomez-Castro, Fernando [1 ]
Ramon Uribe-Ramirez, Agustin [1 ]
Florentino Aguilera-Alvarado, Alberto [1 ]
Ocampo Carmona, Luz Marina [3 ]
机构
[1] Univ Guanajuato, Dept Ingn Quim, Campus Guanajuato,Noria Alta S-N, Guanajuato 36050, Mexico
[2] Univ Guanajuato, Dept Ingn Civil, Campus Guanajuato,Ave Juarez 77, Guanajuato 36050, Mexico
[3] Univ Nacl Colombia, Sede Medellin, Dept Mat & Minerales, Calle 75 N 79 A 51 Bloque M17 407-05, Medellin 050034, Colombia
来源
BATTERIES-BASEL | 2019年 / 5卷 / 02期
关键词
cobalt; spent lithium batteries; recovery; SOLVENT-EXTRACTION; VALUABLE METALS; ORGANIC-ACIDS; SEPARATION; MIXTURE; LI; TECHNOLOGIES; REAGENTS; VALUES; NICKEL;
D O I
10.3390/batteries5020044
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The aim of this paper was to propose and test a continuous cobalt recovery process from waste mobile phone batteries. The procedure started with dismantling, crushing, and classifying the materials. A study on leaching with sulfuric acid and hydrogen peroxide was carried out with subsequent selective separation of cobalt by means of liquid-liquid extraction. The best extraction conditions were determined based on a sequence of experiments that consisted of selecting the best extractant for cobalt, then assessing the impact of extractant concentration, pH, and contact time on the extraction yield. With these conditions, an extraction isotherm was obtained and correlated with a mathematical model to define the number of extraction stages for a countercurrent process using the McCabe-Thiele method. Then, a similar study was done for stripping conditions and, as a last step, cobalt electroplating was performed. The proposed process offers a solution for the treatment of these batteries, avoiding potential problems of contamination and risk for living beings, as well as offering an opportunity to recover valuable metal.
引用
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页数:13
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