Electrochemical recovery of lithium ions in the aqueous phase

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Separation Science and Technology

DOI:https://doi.org/10.1080/01496399308019512· OSTI ID:145162

Kanoh, H; Ooi, K; Miyai, Y; Katoh, S ^[1]

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1. Government Industrial Research Inst., Takamatsu (Japan)

The electrochemical insertion of lithium ions into a Pt/{lambda}-MnO{sub 2} electrode was investigated in various metal chloride solutions. The Li{sup +} insertion occurred effectively in LiCl solutions with higher concentration than 10 mmol/dm{sup 3}, but it could hardly occur in a 0.1 mmol/dm{sup 3} LiCl solution. Alkaline earth metal ions showed a stronger inhibition effect against the Li{sup +} insertion into the Pt/{lambda}-MnO{sub 2} electrode than alkali metal ions. However, since only Li{sup +} ions were taken up from a mixed solution of lithium and alkaline earth metal chlorides, a high selectivity of the electrode for lithium ions was shown. It was possible to recover lithium ions from geothermal water by this electrochemical method using the Pt/{lambda}-MnO{sub 2} electrode; the lithium uptake was 11 mg/g-MnO{sub 2}.

• Sponsoring Organization: USDOE
• OSTI ID: 145162
• Report Number(s): CONF-911049--
• Journal Information: Separation Science and Technology, Journal Name: Separation Science and Technology Journal Issue: 1-3 Vol. 28; ISSN 0149-6395; ISSN SSTEDS
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
40 CHEMISTRY
ALKALINE EARTH METAL COMPOUNDS
DEMINERALIZATION
ELECTRODES
GEOTHERMAL FLUIDS
LITHIUM
MANGANESE OXIDES
MATERIALS RECOVERY
PLATINUM