Abstract
Extraction behavior of three rare-earth metals (Ho, 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.
| Original language | English |
|---|---|
| Pages (from-to) | 261-271 |
| Number of pages | 11 |
| Journal | Journal of Membrane Science |
| Volume | 136 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Dec 10 1997 |
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All Science Journal Classification (ASJC) codes
- Biochemistry
- Materials Science(all)
- Physical and Theoretical Chemistry
- Filtration and Separation
Cite this
Extraction of rare-earth metals by liquid surfactant membranes containing a novel cyclic carrier. / Kakoi, Takahiko; Nishiyori, Takayuki; Oshima, Tatsuya; Kubota, Fukiko; Goto, Masahiro; Shinkai, Seiji; Nakashio, Fumiyuki.
In: Journal of Membrane Science, Vol. 136, No. 1-2, 10.12.1997, p. 261-271.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Extraction of rare-earth metals by liquid surfactant membranes containing a novel cyclic carrier
AU - Kakoi, Takahiko
AU - Nishiyori, Takayuki
AU - Oshima, Tatsuya
AU - Kubota, Fukiko
AU - Goto, Masahiro
AU - Shinkai, Seiji
AU - Nakashio, Fumiyuki
PY - 1997/12/10
Y1 - 1997/12/10
N2 - Extraction behavior of three rare-earth metals (Ho, 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.
AB - Extraction behavior of three rare-earth metals (Ho, 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=0343580437&partnerID=8YFLogxK
U2 - 10.1016/S0376-7388(97)00173-7
DO - 10.1016/S0376-7388(97)00173-7
M3 - Article
AN - SCOPUS:0343580437
VL - 136
SP - 261
EP - 271
JO - Journal of Membrane Science
JF - Journal of Membrane Science
SN - 0376-7388
IS - 1-2
ER -