1997年12月
Extraction of rare-earth metals by liquid surfactant membranes containing a novel cyclic carrier
JOURNAL OF MEMBRANE SCIENCE
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- 巻
- 136
- 号
- 1-2
- 開始ページ
- 261
- 終了ページ
- 271
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/S0376-7388(97)00173-7
- 出版者・発行元
- ELSEVIER SCIENCE BV
Extraction behavior of three rare-earth metals (He, Er and Y), was systematically studied by liquid surfactant membranes (LSMs) containing a novel host compound, a calixarene carboxyl derivative, which is a cyclic compound connected to some phenol rings, as a mobile carrier in a stirred cell. Using the host compound, the extraction equilibrium of the metals in liquid-liquid extraction was also investigated in order to elucidate the complexation mechanism between the metal ions and the cyclic compound. The calixarene carboxyl derivative showed a high extractability for all rare-earth metal ions compared with the analog monomer compound. The extractability for the rare-earth metals was found to increase in the following order: monomer < tetramer < hexamer. However, the extraction rate of the tetramer was higher than that of the hexamer. The carboxyl derivative of calix[4]arene (tetramer) was an excellent carrier for the permeation of rare-earth metals by LSMs. The effects of several operation factors on the extraction of the metals by LSMs were systematically examined with the calix[4]arene. The permeation mechanism of the rare-earth metals by LSMs containing the mobile carrier was explained with an interfacial reaction model.
- リンク情報
- ID情報
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- DOI : 10.1016/S0376-7388(97)00173-7
- ISSN : 0376-7388
- CiNii Articles ID : 80010024774
- Web of Science ID : WOS:A1997YK27500023