Thermodynamics Study of Copper Recovery from Waste LFP (Lithium Iron Phosphate Battery)

Jong-deok Lim; Hyoun-Jong Kim; Jei-Pil Wang

doi:https://doi.org/10.14445/22315381/IJETT-V71I3P228

Research Article | Open Access | Download PDF

Volume 71 | Issue 3 | Year 2023 | Article Id. IJETT-V71I3P228 | DOI : https://doi.org/10.14445/22315381/IJETT-V71I3P228

Thermodynamics Study of Copper Recovery from Waste LFP (Lithium Iron Phosphate Battery)

Jong-deok Lim, Hyoun-Jong Kim, Jei-Pil Wang

Received	Revised	Accepted	Published
06 Jan 2022	17 Feb 2023	20 Mar 2023	25 Mar 2023

Citation :

Jong-deok Lim, Hyoun-Jong Kim, Jei-Pil Wang, "Thermodynamics Study of Copper Recovery from Waste LFP (Lithium Iron Phosphate Battery)," International Journal of Engineering Trends and Technology (IJETT), vol. 71, no. 3, pp. 276-281, 2023. Crossref, https://doi.org/10.14445/22315381/IJETT-V71I3P228

Abstract

In this study, a thermodynamic investigation was conducted to select a slag system capable of dry reduction treatment of Cu through the analysis of waste LFP batteries. Through this, the possibility of Cu recovery was reviewed. To remove C in the waste LFP battery, C was removed from the waste LFP battery in an O2 atmosphere at 800 ° C for 2 hr. As a result of analyzing components, 42.25% of Cu and 39.52% of Fe were detected. First, Cu was separated and recovered in a matte form. After that, a thermodynamics review of the dry refining process was conducted to turn Fe in the slag into FeO for the low-carbon Fe reduction process. Therefore, FeO-SiO2-Al2O3 was selected as the slag system, and through this, the possibility of manufacturing Cu in the waste LFP battery as matte using Factsage 8.2.

Keywords

LFP battery, Molten reduction, Slag system, Cu recovery, Factsage.

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