Recycling of Li-Ion Batteries from Industrial Processing: Upscaled Hydrometallurgical Treatment and Recovery of High Purity Manganese by Solvent Extraction
Journal article, 2023

Manganese plays a central role in lithium-ion batteries (LIBs) but its recycling is rarely addressed when compared to other valuable metals present in LIBs, such as Co and Ni. Thus, the main goal of this work was to study and achieve the separation of Mn from Co and Ni by solvent extraction from a leachate obtained from LIBs using hydrochloric acid in an upscaled reactor, which is an innovative aspect of this work. The results confirmed the high selectivity of D2EHPA towards Mn, which could be completely extracted in two stages (0.5 M D2EHPA at pH 2.5). The main co-extracted metals were Al, Cu and Co, but with lower concentrations than Mn. The behavior of minor impurities such as Zn and Mg was also monitored. Scrubbing using manganese chloride was crucial to remove impurities from the loaded organic and prevent their presence in the stripping product, and high O:A ratios negatively affected the scrubbing efficiency. Keeping the concentration of HCl up to 0.5 M in the stripping stage helped to limit the stripping of impurities. Manganese oxide was precipitated as a product with 99.5% purity (with traces of Zn, Cu and Co), which could be reused in the battery value chain.


lithium-ion batteries

solvent extraction


manganese recovery


Nathalia Cristine Vieceli

Chalmers, Chemistry and Chemical Engineering, Energy and Material

Claudia Vonderstein

RWTH Aachen University

Thomas Swiontekc

Accurec Recycling

Srecko Stopic

RWTH Aachen University

Christian Dertmann

RWTH Aachen University

Reiner Sojka

Accurec Recycling

Niclas Reinhardt

Meab Metallextraktion

Christian Ekberg

Chalmers, Chemistry and Chemical Engineering, Energy and Material

Bernd Friedrich

RWTH Aachen University

Martina Petranikova

Chalmers, Chemistry and Chemical Engineering, Energy and Material

Solvent Extraction and Ion Exchange

0736-6299 (ISSN) 1532-2262 (eISSN)

Vol. 41 2 205-220

Near zero waste Hydrometallurgy for spent Li-Ion batteries- multi element recovery for maximized recycling

VINNOVA (2019-02069), 2019-09-01 -- 2021-08-31.

Subject Categories

Analytical Chemistry

Other Chemical Engineering

Other Chemistry Topics



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