Selective extraction and separation of Li, Co and Mn from leach liquor of discarded lithium ion batteries (LIBs)
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
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Title |
Selective extraction and separation of Li, Co and Mn from leach liquor of discarded lithium ion batteries (LIBs)
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Creator |
Choubey, Pankaj K
Dinkar, Om Shankar Panda, Rekha Kumari, Archana Jha, Manis K Pathak, D D |
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Subject |
Waste Management
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Description |
Novel route has been developed to selectively extract lithium (Li), cobalt (Co) and manganese (Mn) from
the leach liquor of discarded lithium ion batteries (LIBs) containing 1.4 g/L Cu, 1.1 g/L Ni, 11.9 g/L Co,
6.9 g/L Mn and 1.2 g/L Li. Initially, Cu and Ni were extracted by solvent extraction techniques using
10% LIX 84-IC at equilibrium (Eq.) pH 3 and 4.6, respectively. Subsequently, precipitation studies were
carried out at different conditions such as pH, reaction time, precipitant concentration etc., to optimize
the parameters for selective precipitation of Co from the leach liquor. Result showed that 99.2% Co
was precipitated from the leach liquor (11.9 g/L Co, 6.9 g/L Mn and 1.2 g/L Li) after extraction of Cu
and Ni in a range of pH 2.9 to 3.1 using un-diluted ammonium sulfide solution (10% v/v) as a precipitant
at 30 C, while only 0.89% Mn and 0.62% Li were co-precipitated. After Co precipitation, 98.9% Mn was
extracted from the filtrate using 10% D2EHPA at equilibrium pH 4.5, and Li remained in raffinate. From
the obtained purified solution, metals could be recovered either in a form of salt/metals by precipitation/
evaporation/ electrolysis method.
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Publisher |
Elsevier
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Date |
2021
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://eprints.nmlindia.org/8288/1/Choubey_(2021).pdf
Choubey, Pankaj K and Dinkar, Om Shankar and Panda, Rekha and Kumari, Archana and Jha, Manis K and Pathak, D D (2021) Selective extraction and separation of Li, Co and Mn from leach liquor of discarded lithium ion batteries (LIBs). Waste Management . |
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Relation |
https://doi.org/10.1016/j.wasman.2020.10.002
http://eprints.nmlindia.org/8288/ |
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