Journal article

Enabling sustainable green close-loop membrane lithium extraction by acid and solvent resistant poly (ether ether ketone) membrane

T Huang, J Song, S He, T Li, XM Li, T He

Journal of Membrane Science | Published : 2019

Abstract

Membrane extraction (ME) for separating lithium ions from salt-lake brine is a green process comparing to conventional liquid-liquid extraction. Previous research has identified suitable organic extractant and membrane materials for extracting lithium from salt-lake brine. However, stripping solution, a concentrated hydrochloride acid (HCl), dissolves current solvent resistant membrane. We presents here a novel application of acid and solvent resistant poly (ether ether ketone) (PEEK) membrane for membrane stripping. PEEK membranes were prepared via immersion precipitation using a mixture solvent consisting of methanesulphonic acid (MSA) and sulfuric acid (SA). A linear cloud point curve of ..

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