Lithium recovery from lithium/magnesium containing waters with biodegradable chitosan based EDTA doped adsorbent

The shift from conventional fossil fuel vehicles to electric (and hybrid electric) vehicles plays a crucial role in reducing CO 2 emissions to prevent global warming. Lithium-ion batteries have become a primary choice for electric vehicles due to their high energy density and light weight compared t...

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Bibliographic Details
Published inSeparation science and technology Vol. 60; no. 12; pp. 1491 - 1501
Main Authors Dagdeviren, Rumeysa, Sevinc, Rumeysa, Unlu, Derya
Format Journal Article
LanguageEnglish
Published Taylor & Francis 13.08.2025
Subjects
Adsorption
biodegradable
chitosan
EDTA
lithium
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Summary:The shift from conventional fossil fuel vehicles to electric (and hybrid electric) vehicles plays a crucial role in reducing CO 2 emissions to prevent global warming. Lithium-ion batteries have become a primary choice for electric vehicles due to their high energy density and light weight compared to other battery types. In this study, an adsorbent was developed to adsorb Mg 2+ in solutions containing Li/Mg binary component, thus obtaining lithium in concentrated form. EDTA-chitosan adsorbent based on biodegradable polymer chitosan was synthesized as adsorbent. Adsorbents were characterized using XRD, FTIR, BET and SEM analysis. The effects of adsorbent amount, pH, Li/Mg feed ratio on Mg 2+ removal percentage and separation factor were investigated. The optimum separation conditions are determined as pH = 4.5, adsorbent amount of 0.3 g, Li/Mg feed ratio of 1:20. Under these optimum conditions, 99.36% of magnesium removal percentage and 141.28 of Li/Mg separation factor were obtained.
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2025.2508234