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Cai C, Fajar ATN, Hanada T, Wakabayashi R, Goto M. Amino Acid Leaching of Critical Metals from Spent Lithium-Ion Batteries Followed by Selective Recovery of Cobalt Using Aqueous Biphasic System. ACS OMEGA 2023; 8:3198-3206. [PMID: 36713728 PMCID: PMC9878538 DOI: 10.1021/acsomega.2c06654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 12/26/2022] [Indexed: 06/18/2023]
Abstract
To reduce the exploitation of mine resources and decrease the harm to the environment caused by urban electronic wastes, the recovery of critical metals in secondary resources is crucial. In this study, we have successfully developed an eco-friendly process to integrate the leaching and separation of cobalt (Co) from a spent lithium-ion battery (LIB) cathode using an amino acid-based aqueous biphasic system (ABS). We, for the first time, demonstrated a simple method for leaching a LIB cathode using only amino acids. In addition, we have investigated the leaching mechanism using the typical cathode active material lithium cobalt oxide (LiCoO2). Then, the Co was selectively extracted by a biphasic system (amino acid-PPG400-H2O). This novel process has an excellent prospect in the field of spent-battery recycling because of its eco-friendly and process-simplified advantages.
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Cai C, Hanada T, Fajar ATN, Goto M. Novel Ionic Liquid-Based Aqueous Biphasic System with Amino Acids for Critical Metal Recovery from Lithium-Ion Batteries. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chunqing Cai
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Takafumi Hanada
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Adroit T. N. Fajar
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Masahiro Goto
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
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Vargas SJR, Schaeffer N, Souza JC, da Silva LHM, Hespanhol MC. Green separation of lanthanum, cerium and nickel from waste nickel metal hydride battery. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 125:154-162. [PMID: 33706254 DOI: 10.1016/j.wasman.2021.02.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
In a circular economy context, there is a growing need for more sustainable waste management options to recover elements from end-of-life materials. These "secondary ores" represent a source of critical elements that are often present in higher concentration compared to their primary ore. In this work, the recovery of lanthanum (La) from waste nickel metal hydride battery (NiMH) leachate is investigated using an aqueous biphasic system (ABS) process based on a pluronic triblock copolymer (L35). An initial screening is performed to determine the influence of the ABS phase forming salt anion and alizarin red extractant on the La extraction efficiency and selectivity. From these results, a three-step ABS process is developed, varying only the nature of the salt and requiring no additional extractant. In a first step, the ABS composed of L35 + thiocyanate ammoniun + H2O efficiently extracts iron, manganese, and cobalt leaving La, cerium, and Ni in solution. Nickel is subsequently recovered by precipitation using dimethylglyoxime. Finally, La is separated from cerium using the L35 + ammonium nitrate + H2O ABS, recovering 62 g of La with 94% purity per kilogram of black mass of NiMH battery. This work highlights the applicability of ABS for the treatment of raw and complex matrices, potentially allowing for a greener hydrometallurgical treatment of wastes.
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Affiliation(s)
- Silvia J R Vargas
- Group of Analysis and Education for Sustainability (GAES), Chemistry Department, Centre of Exact and Technology Sciences, Federal University of Viçosa (UFV), Viçosa, MG 36570-900, Brazil; Grupo de Química Verde Coloidal e Macromolecular (QUIVECOM), Chemistry Department, Centre of Exact and Technology Sciences, Federal University of Viçosa (UFV), Viçosa, MG 36570-900, Brazil; CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Nicolas Schaeffer
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Jamille C Souza
- Group of Analysis and Education for Sustainability (GAES), Chemistry Department, Centre of Exact and Technology Sciences, Federal University of Viçosa (UFV), Viçosa, MG 36570-900, Brazil
| | - Luis H M da Silva
- Grupo de Química Verde Coloidal e Macromolecular (QUIVECOM), Chemistry Department, Centre of Exact and Technology Sciences, Federal University of Viçosa (UFV), Viçosa, MG 36570-900, Brazil
| | - Maria C Hespanhol
- Group of Analysis and Education for Sustainability (GAES), Chemistry Department, Centre of Exact and Technology Sciences, Federal University of Viçosa (UFV), Viçosa, MG 36570-900, Brazil.
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