Thermodynamic investigations of aqueous-molten paraffin wax liquid-liquid extractions and synergistic extractions of some trivalent rare earth elements

Jinzhang Gao, Guanglin Hu, Jingwan Kang, Haiyan Fan, Guangbi Bai

Research output: Contribution to journalArticle

19 Citations (Scopus)

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 languageEnglish
Pages (from-to)541-546
Number of pages6
JournalTalanta
Volume41
Issue number4
DOIs
Publication statusPublished - 1994
Externally publishedYes

Fingerprint

Paraffin waxes
Liquid-Liquid Extraction
Waxes
Rare earth elements
Thermodynamics
Paraffin
Molten materials
Liquids
Mineral Oil
Ions
Temperature
Rare earths
pyrazolone
Chemical analysis

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 journalArticle

@article{d4bb3432831c4efe9601c2e10db50de4,
title = "Thermodynamic investigations of aqueous-molten paraffin wax liquid-liquid extractions and synergistic extractions of some trivalent rare earth elements",
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.",
author = "Jinzhang Gao and Guanglin Hu and Jingwan Kang and Haiyan Fan and Guangbi Bai",
year = "1994",
doi = "10.1016/0039-9140(93)E0021-5",
language = "English",
volume = "41",
pages = "541--546",
journal = "Talanta",
issn = "0039-9140",
publisher = "Elsevier",
number = "4",

}

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

AN - SCOPUS:0000477616

VL - 41

SP - 541

EP - 546

JO - Talanta

JF - Talanta

SN - 0039-9140

IS - 4

ER -