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Pratima Meshram,Abhilash,Banshi Dhar Pandey,Tilak Raj Mankhand,Haci Deveci 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.43 No.-
The present work focuses on a two-step process for selective dissolution of metals from cathode activematerial of spent LIBs. Cathode powder baked at 300 C using H2SO4 being subjected tofirst stageleaching with water extracted 78.6% Li, 80.4% Co in 60 min at 75 C and 25% pulp density; recovery of Niand Mn being low (<15%). In second stage, reductive leaching was performed using an acid mixture(H2SO4 and HNO3) with glucose solubilizing 67% Ni, 64.8% Mn in 45 min. The overall recovery of themetals was 93.2% Li, 90.52% Co, 82.8% Ni, 77.7% Mn.