Acid leaching of LiCoO2 enhanced by reducing agent. Model formulation and validation

In this work, a model has been formulated to describe the complex process of LiCoO2 leaching through participation competing reactions in acid media including effect H2O2 as reducing agent. The presented here describes extraction Li and Co presence absence H2O2, it takes into account different phenomena affecting controlling mechanisms. context, predicts swift from kinetic control diffusion control. implemented solved simulate process. To validate estimate parameters, set 12 (in triplicate) experiments were carried out varying concentration hydrochloric (within range 0.5–2.5 M) hydrogen peroxide (range 0–0.6%v/v). simulation results match fairly well with experimental data for wide conditions. Furthermore, can be used predict solid-liquid ratios oxygen concentrations. This could design or optimize facilitating corresponding economical balance treatment.