Abstract
To cope up with the supply–demand gap of lithium (Li) an essential energy element, the recycling of waste industrial effluent (generated after cobalt recycling from waste Li-ion batteries) is targeted. In industry, after the recovery of Co, Cu, Ni, and graphite from one ton of black cathodic material of Li-ion batteries about 8 m3 of waste effluent containing 5–10 g/L Mn and 1–3 g/L Li is generated. Systematic precipitation studies were carried out using saturated alkaline solution varying Eh/ pH of the effluent. Settling time 30 min and pH ~12 were found to be optimum conditions for maximum precipitation of Li (~90%) as salt. Precipitation studies for Mn/ Li with scientific validation were also carried out and discussed. The process developed has tremendous potential to be commercialized in industry after scale-up studies.
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Acknowledgements
This paper is based on the joint collaborative research work carried out between CSIR-National Metallurgical Laboratory (CSIR-NML), Jamshedpur, India and M/s Evergreen Recylekaro India Pvt. Ltd., Mumbai, India. Authors are thankful to the Director, National Metallurgical Laboratory for giving permission to publish the paper. M/s Evergreen Recylekaro India Pvt. Ltd., Mumbai, India has also been acknowledged for the financial support provided by them.
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Kumari, A., Choubey, P.K., Gupta, R., Jha, M.K. (2021). Recovery of Lithium (Li) Salts from Industrial Effluent of Recycling Plant. In: Azimi, G., et al. Rare Metal Technology 2021. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-65489-4_11
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DOI: https://doi.org/10.1007/978-3-030-65489-4_11
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