Efforts to remove aqueous lithium ion using Octolig® and methylated derivatives

Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
Dean F Martin, Kirpal S Bisht

Abstract

Aqueous Li+ - containing samples (in DI water or well water) were eluted over Octolig®, a polyethylenediimine covalently attached to a high- surface-area silica gel, and only slight removal, if any, could be claimed. However, when using tetrahydrofuran (THF) as a solvent we quantitatively removed lithium ion with Octolig® or with alkylated Octolig®, demonstrating the efficacy of Octolig® and lack of advantage of a N, N'-dialkylated Octolig®. In addition, the removal of alkali metal ions (lithium, sodium, and potassium) in THF by Octolig® was partially selective: While being quantitative for lithium it was only about 40% for potassium. The study has potential implications for using geothermal brines not only as a heat source, but as a source of lithium as well.

References

May 1, 1973·Journal of Chemical Education·M T DoigD F Martin
Dec 7, 2007·Journal of the American Chemical Society·Luca SalviPatrick J Walsh
Jan 6, 2009·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Dean F MartinRobert L Alldredge
Feb 26, 2010·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Frederick W Stull, Dean F Martin
Feb 7, 2013·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Dean F MartinCheryl H McCane
Jun 2, 2015·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Dean F MartinTarah A Word
Nov 26, 2015·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Dean F MartinTarah A Word
Oct 28, 2017·Environmental Science & Technology·Mariappan Parans ParanthamanStephen Harrison

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Citations

Dec 8, 2020·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Dean F Martin, Kirpal S Bisht

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Methods Mentioned

BETA
column chromatography

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