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2020 | OriginalPaper | Buchkapitel

Selective Lithium Recovery from Brines Using Hydrothermally Treated Titania Slag

verfasst von : Rajashekhar Marthi, York R. Smith

Erschienen in: Rare Metal Technology 2020

Verlag: Springer International Publishing

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Abstract

Ion-exchange adsorbents such as delithiated lithium titanium oxides (LTOs) are highly effective for selective lithium adsorption from brines resources. In this work, we have synthesized LTO from waste titania slag and immobilized on a diatomaceous earth (DE) support. Titania slag was hydrothermally treated in alkaline solution to remove slag impurities. Acidic leaching followed by hydrolysis was performed to dissolve impurities and immobilize TiO₂ on DE. Subsequent solid-state synthesis with Li₂CO₃ resulted in the formation of LTO. Batch adsorption studies show that around 99% of lithium was adsorbed from a buffered 50 ppm Li. Thermodynamic and kinetic studies show the lithium adsorption to be an endothermic, chemisorption process.

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Titel: Selective Lithium Recovery from Brines Using Hydrothermally Treated Titania Slag
verfasst von: Rajashekhar Marthi
York R. Smith
Verlag: Springer International Publishing
Buch: Rare Metal Technology 2020
Print ISBN: 978-3-030-36757-2

Electronic ISBN: 978-3-030-36758-9

Copyright-Jahr: 2020
DOI: https://doi.org/10.1007/978-3-030-36758-9_5

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