Hydrometallurgical leaching and recovery of cobalt from lithium ion battery

The main aim of this work was to test the ability an amino acid (i.e. glycine) leach cobalt from Li ion batteries (LiBs). process parameters namely temperature, pulp density and concentration glycine were optimized for maximizing leaching efficiency cathodic material. Response surface methodology (RSM) applied determining experimental conditions instead using traditional one factor at a time (OFAT) approach in order ascertain interaction effects between different factors. Thus, optimal value based on RSM maximum potential LiBs obtained. optimum values as follows; temperature = 74 °C, 19.9 g/L 0.936 M. Under condition, 61.8%, while 89.7% achieved following conditions: 100 13.8 1.24 Oxalic used recovering solution by varying pH molar ratio oxalic ions. Cobalt recovery efficiencies ∼88.0% 7.0 2.5:1.0.