2026-06-06T04:19:14Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/228192026-02-03T11:08:07Zcom_10630_2254col_10630_37953
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Cerrillo-González, María del Mar
author
Villén-Guzmán, María Dolores
author
Vereda-Alonso, Carlos
author
Rodríguez-Maroto, José Miguel
author
Paz-García, Juan Manuel
2021-09-10T09:36:02Z
2021-09-10T09:36:02Z
2021-08-25
https://hdl.handle.net/10630/22819
https://doi.org/10.1016/j.chemosphere.2021.132020
In this work, a model has been formulated to describe the complex process of LiCoO2 leaching through the participation of competing reactions in acid media including the effect of H2O2 as reducing agent. The model presented here describes the extraction of Li and Co in the presence and absence of H2O2, and it takes into account the different phenomena affecting the controlling mechanisms. In this context, the model predicts the swift from kinetic control to diffusion control. The model has been implemented and solved to simulate the leaching process. To validate the model and to estimate the model parameters, a set of 12 (in triplicate) extraction experiments were carried out varying the concentration of hydrochloric acid (within the range of 0.5–2.5 M) and hydrogen peroxide (range 0–0.6%v/v). The simulation results match fairly well with the experimental data for a wide range of conditions. Furthermore, the model can be used to predict results with different solid-liquid ratios as well as different acid and oxygen peroxide concentrations. This model could be used to design or optimize a LiCoO2 extraction process facilitating the corresponding economical balance of the treatment.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Baterias de Litio
Acid leaching of LiCoO2 enhanced by reducing agent. Model formulation and validation.
journal article
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URL
https://riuma.uma.es/bitstreams/3a6f8cb3-344f-4ce1-8f12-d63c1c81c47f/download
File
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80d983c5c8eae5dd0413e6d67448aca2
5795659
application/pdf
Chemosphere (2021)_Publicado.pdf