Spectrum Behavior of Extractant and Metal Ions in the Polyethylene Glycol-sodium Sulphate-extractant Two-aqueous Phase Systems
Hua Yan
Abstract
Hua Yan
Abstract
In this paper, the extraction behaviors of alizarin red S (ARS), PAR and malachite green (MG) in the polyethylene glycol-sodium sulphate-extractant two-aqueous phase systems were investigated. It is showed that hydrogen bond interaction exists between extractant and polyethylene glycol with water as the intermediary. The extraction conditions of Zr(Ⅳ), Ti(Ⅳ) and La( Ⅲ) in the polyethylene glycol-sodium sulphate-alizarin red S system were discussed. The results indicated that the complex of Zr(Ⅳ) with alizarin red S was almost completely extracted by the PEG phase, La(Ⅲ) was partly extracted, while Ti(Ⅳ) ion was not extracted from the aqueous solution of pH 1-3. The extraction separation of Ti(Ⅳ) and Zr(Ⅳ) was carried out by controlling the solution acidity at pH 2.
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In this paper, the extraction behaviors of alizarin red S (ARS), PAR and malachite green (MG) in the polyethylene glycol-sodium sulphate-extractant two-aqueous phase systems were investigated. It is showed that hydrogen bond interaction exists between extractant and polyethylene glycol with water as the intermediary. The extraction conditions of Zr(Ⅳ), Ti(Ⅳ) and La( Ⅲ) in the polyethylene glycol-sodium sulphate-alizarin red S system were discussed. The results indicated that the complex of Zr(Ⅳ) with alizarin red S was almost completely extracted by the PEG phase, La(Ⅲ) was partly extracted, while Ti(Ⅳ) ion was not extracted from the aqueous solution of pH 1-3. The extraction separation of Ti(Ⅳ) and Zr(Ⅳ) was carried out by controlling the solution acidity at pH 2.
Key concepts: Polyethylene glycol, Chemistry, Aqueous solution, Extraction (chemistry), ALIZARIN RED, Malachite green, Sodium, Aqueous two-phase system