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Lithium recovery from geothermal brine – an investigation into the desorption of lithium ions using manganese oxide adsorbents

Herrmann, Laura 1; Ehrenberg, Helmut 2; Graczyk-Zajac, Magdalena; Kaymakci, Elif; Kölbel, Thomas; Kölbel, Lena; Tübke, Jens
1 Institut für Angewandte Materialien (IAM), Karlsruher Institut für Technologie (KIT)
2 Institut für Angewandte Materialien – Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)

Abstract:

Spinel type lithium manganese oxides (LMOs) are promising adsorption materials for selective recovery of lithium from salty brines. In this work a lithium-ion sieve material, H$_{1.6}$Mn$_{1.6}$O$_{4}$, derived from Li$_{1.6}$Mn$_{1.6}$O$_{4}$4, a spinel type LMO, was successfully prepared via hydrothermal synthesis. This lithium-ion sieve, H$_{1.6}$Mn$_{1.6}$O$_{4}$, was then used in laboratory tests to adsorb Li+ from a generic LiCl solution and geothermal brine from Bruchsal geothermal power plant. Desorption experiments were performed with the following desorption solutions: ammonium peroxydisulfate ((NH$_{4}$)$_{2}$S$_{2}$O$_{8}$), sodium peroxydisulfate (Na$_{2}$S$_{2}$O$_{8}$), acetic acid (CH$_{3}$COOH), sulfuric acid (H$_{2}$SO$_{4}$), carbonic acid (H$_{2}$CO$_{3}$), ascorbic (C$_{6}$H$_{8}$O$_{6}$) and hydrochloric acid (HCl). The results showed that C$_{6}$H$_{8}$O$_{6}$ led to adsorbent destruction and only small amount of lithium was desorbed with H$_{2}$CO$_{3}$. CH$_{3}$COOH and (NH$_{4}$)$_{2}$S$_{2}$O$_{8}$ showed the best desorption performance with high lithium recovery and low Mn dissolution. The kinetic experiments indicate that more than 90% of equilibrium was reached after 4 hours. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000157760
Veröffentlicht am 19.04.2023
Originalveröffentlichung
DOI: 10.1039/D2YA00099G
Scopus
Zitationen: 6
Dimensions
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Energiespeichersysteme (IAM-ESS)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 10.11.2022
Sprache Englisch
Identifikator ISSN: 2753-1457
KITopen-ID: 1000157760
HGF-Programm 38.02.02 (POF IV, LK 01) Components and Cells
Erschienen in Energy Advances
Verlag Royal Society of Chemistry (RSC)
Band 1
Heft 11
Seiten 877–885
Nachgewiesen in Dimensions
Scopus
Globale Ziele für nachhaltige Entwicklung Ziel 7 – Bezahlbare und saubere Energie
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