|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Rare Metal Extraction & Processing
||Recovery of lithium (Li) salts from industrial effluent of recycling plant
||Archana Kumari, Pankaj Kumar Choubey, Rajesh Gupta, Manis Kumar Jha
|On-Site Speaker (Planned)
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.
||Hydrometallurgy, Extraction and Processing, Recycling and Secondary Recovery