| 乳状液膜中1,3-桥连杯[4]芳烃/冠醚对碱金属离子的选择性萃取(英文) |
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| 引用本文： | Bahram Mokhtari,Kobra Pourabdollah. 乳状液膜中1,3-桥连杯[4]芳烃/冠醚对碱金属离子的选择性萃取(英文)[J]. 中国化学工程学报, 2013, 21(11): 1313-1318. DOI: 10.1016/S1004-9541(13)60628-X |
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| 作者姓名： | Bahram Mokhtari Kobra Pourabdollah |
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| 作者单位： | Department of Chemical Engineering, Shahreza Branch, Islamic Azad University, Shahreza, Iran |
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| 基金项目： | supported by Islamic Azad University (Shahreza Branch);Iran Nanotechnology Initiative Council |
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| 摘 要： | Nano-assisted inclusion separation of alkali metals from basic solutions was reported by inclu sion-facilitated emulsion liquid membrane process. The novelty of this study is application of nano-baskets of calixcrown in the selective and efficient separation of alkali metals as both the carrier and the surfactant. For this aim, four derivatives of diacid calix[4]-1,3-crowns-4,5 were synthesized, and their inclusion-extraction parameters were optimized including the calixcrown scaffold （4.4%, by mass） as the carrier/demulsifier, the commercial kero sene as diluent in membrane, sulphonic acid （0.2 mol.L-1） and ammonium carbonate （0.4 mol.L-1） as the strip and the feed phases, the phase and the treat ratios of 0.8 and 0.3, mixing speed （300 r.min-1）, and initial solute concentration （100 mg.L-1）. The selectivity of membrane over more than ten interfering cations was examined and the re sults reveled that under the optimized operating condition, the degree of inclusion-extraction of alkali metals was as high as 98%-99%.
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| 关 键 词： | nano-basket inclusion calixcrown emulsion liquid membrane alkali metals |
| 收稿时间： | 2012-07-16 |
Nano-baskets of Calix[4]-l,3-crown in Emulsion Membranes for Selective Extraction of Alkali Metal Cations |
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| Bahram Mokhtari,Kobra Pourabdollah. Nano-baskets of Calix[4]-l,3-crown in Emulsion Membranes for Selective Extraction of Alkali Metal Cations[J]. Chinese Journal of Chemical Engineering, 2013, 21(11): 1313-1318. DOI: 10.1016/S1004-9541(13)60628-X |
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| Authors: | Bahram Mokhtari Kobra Pourabdollah |
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| Affiliation: | Department of Chemical Engineering, Shahreza Branch, Islamic Azad University, Shahreza, Iran |
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| Abstract: | Nano-assisted inclusion separation of alkali metals from basic solutions was reported by inclusion-facilitated emulsion liquid membrane process. The novelty of this study is application of nano-baskets of calixcrown in the selective and efficient separation of alkali metals as both the carrier and the surfactant. For this aim, four derivatives of diacid calix[4]-1,3-crowns-4,5 were synthesized, and their inclusion-extraction parameters were optimized including the calixcrown scaffold (4.4%, by mass) as the carrier/demulsifier, the commercial kerosene as diluent in membrane, sulphonic acid (0.2 mol·L-1) and ammonium carbonate (0.4 mol·L-1) as the strip and the feed phases, the phase and the treat ratios of 0.8 and 0.3, mixing speed (300 r·min-1), and initial solute concentration (100 mg·L-1). The selectivity of membrane over more than ten interfering cations was examined and the results reveled that under the optimized operating condition, the degree of inclusion-extraction of alkali metals was as high as 98%-99%. |
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| Keywords: | nano-basket inclusion calixcrown emulsion liquid membrane alkali metals |
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