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Direct temperature-swing extraction of rare-earth elements from acidic solution using the hydrophobic interactions of poly($$N$$-isopropylacrylamide) with diglycolamide-typed ligands

Saga, Kaname*; Suzuki, Hideya; Matsumura, Tatsuro  ; Tsukahara, Takehiko*

The phase transition-based gelification phenomenon of poly-$$N$$-isopropylacrylamide (PNIPAAm) in aqueous solutions has a great potential in developing new waste-free extraction processes of metal ions. By using hydrophobic diglycolamide-typed ligands in gelification extraction, a one-step complete extraction of all the RE ions from a nitric acid solution was successfully realized.



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Category:Chemistry, Analytical



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