Selective separation of cobalt and nickel using a stable supported ionic liquid membrane
作者： Guillaume Zante , Maria Boltoeva , Abderrazak Masmoudi , Rémi Barillon , Dominique Trébouet
DOI: 10.1016/J.SEPPUR.2020.117477
关键词:
摘要: Abstract The selective separation of cobalt from nickel is major importance for the recovery primary or secondary sources, as well analytical purposes. In this paper, extraction mixtures was examined using a supported liquid membrane employing undiluted hydrophobic ionic liquid, namely tri(hexyl)tetradecyl phosphonium chloride [P66614][Cl], carrier and polyvinylidene difluoride (PVDF) material. preliminary study, efficiency (SILM) evaluated by conventional static mode sorption experiments. Up to 86% can be recovered under optimal conditions (by contacting SILM with 9.8 cm2 in 5 mL aqueous phase 1 h at 100 rpm, 9 mol·L−1 HCl phase). Next, metal ion transport through flat sheet investigated pure water receiving phase. Permeation coefficients values 2.2 × 10−6 m·s−1 8.0 × 10−6 were obtained hydrophilic membrane, respectively. showed selectivity over factors high 218. Membrane stability proven excellent, since same used three times without losses performances.
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