Abstract
In this paper, liquid-liquid extraction behaviour of RE(III) (RE = La, Sm, E, Yb) by the use of 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 (PMBP) in liquid paraffin with cersin has been investigated at 343.2 K. Under some conditions, the synergistic extraction behaviour with PMBP and Phen has also been studied. The slope analysis method shows that the compositions of the extracted species are REA3 and REA3B. pH 1 2 values were also obtained. Equilibrium extraction constants and thermodynamic parameters were calculated. The results showed that increasing temperature is favourable to extraction of heavy rare earth ions with PMBP and more favourable to synergistic extraction with PMBP and Phen. Synergistic extraction can be carried out at lower pH.
| Original language | English |
|---|---|
| Pages (from-to) | 541-546 |
| Number of pages | 6 |
| Journal | Talanta |
| Volume | 41 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1994 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Analytical Chemistry
- Spectroscopy
Cite this
Thermodynamic investigations of aqueous-molten paraffin wax liquid-liquid extractions and synergistic extractions of some trivalent rare earth elements. / Gao, Jinzhang; Hu, Guanglin; Kang, Jingwan; Fan, Haiyan; Bai, Guangbi.
In: Talanta, Vol. 41, No. 4, 1994, p. 541-546.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermodynamic investigations of aqueous-molten paraffin wax liquid-liquid extractions and synergistic extractions of some trivalent rare earth elements
AU - Gao, Jinzhang
AU - Hu, Guanglin
AU - Kang, Jingwan
AU - Fan, Haiyan
AU - Bai, Guangbi
PY - 1994
Y1 - 1994
N2 - In this paper, liquid-liquid extraction behaviour of RE(III) (RE = La, Sm, E, Yb) by the use of 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 (PMBP) in liquid paraffin with cersin has been investigated at 343.2 K. Under some conditions, the synergistic extraction behaviour with PMBP and Phen has also been studied. The slope analysis method shows that the compositions of the extracted species are REA3 and REA3B. pH 1 2 values were also obtained. Equilibrium extraction constants and thermodynamic parameters were calculated. The results showed that increasing temperature is favourable to extraction of heavy rare earth ions with PMBP and more favourable to synergistic extraction with PMBP and Phen. Synergistic extraction can be carried out at lower pH.
AB - In this paper, liquid-liquid extraction behaviour of RE(III) (RE = La, Sm, E, Yb) by the use of 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 (PMBP) in liquid paraffin with cersin has been investigated at 343.2 K. Under some conditions, the synergistic extraction behaviour with PMBP and Phen has also been studied. The slope analysis method shows that the compositions of the extracted species are REA3 and REA3B. pH 1 2 values were also obtained. Equilibrium extraction constants and thermodynamic parameters were calculated. The results showed that increasing temperature is favourable to extraction of heavy rare earth ions with PMBP and more favourable to synergistic extraction with PMBP and Phen. Synergistic extraction can be carried out at lower pH.
UR - http://www.scopus.com/inward/record.url?scp=0000477616&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000477616&partnerID=8YFLogxK
U2 - 10.1016/0039-9140(93)E0021-5
DO - 10.1016/0039-9140(93)E0021-5
M3 - Article
VL - 41
SP - 541
EP - 546
JO - Talanta
JF - Talanta
SN - 0039-9140
IS - 4
ER -