Abstract
Processes are needed to rapidly and cost-effectively produce highly pure lithium salts for the rechargeable battery sector. Lithium purification is a chemical engineering challenge, due to the low concentration of lithium compared to sodium, potassium, magnesium, calcium, and transition metal ions commonly occurring in lithium brine resources. We describe a Solid Phase Extraction (SPE) process that rejects sodium and potassium, while binding lithium and other higher valent ions. Lithium is then harvested by selective displacement from the SPE column . The rapid equilibration kinetics of SPE composites enables these ion separations to occur in a small SPE column and in one column stage. The chemical parameters of the process are described.
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© 2018 The Minerals, Metals & Materials Society
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Hammen, R. (2018). Production of Purified Lithium Salts with a One-Stage Solid Phase Extraction. In: Davis, B., et al. Extraction 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-95022-8_216
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DOI: https://doi.org/10.1007/978-3-319-95022-8_216
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Publisher Name: Springer, Cham
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Online ISBN: 978-3-319-95022-8
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