Synergistic Solvent Extraction of Neodymium(III) from Chloride Solutions using a Mixture of Triisooctylamine and bis(2,4,4-Trimethylpentyl) Monothiophosphinic Acid

被引：37

作者：

Kumar, B. Nagaphani ^{[1
]}

Reddy, B. Ramachandra ^{[1
,2
]}

Kantam, M. Lakshmi ^{[1
]}

Kumar, J. Rajesh ^{[3
]}

Lee, Jin Young ^{[3
]}

机构：

[1] Indian Inst Chem Technol CSIR, Inorgan Chem Div, Hyderabad 500607, Andhra Pradesh, India

[2] Rubamin Ltd, Halol, India

[3] Korea Inst Geosci & Mineral Resources KIGAM, Mineral Resources Res Div, Taejon, South Korea

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2014年 / 49卷 / 01期

关键词：

alamine; 308; cyanex; 302; neodymium(III); separation factors; synergism; LIQUID-LIQUID-EXTRACTION; RARE-EARTH-ELEMENTS; SEC-OCTYLPHENOXYACETIC ACID; PHOSPHONIC ACID; ACETIC-ACID; SEPARATION; YTTRIUM; HEAVY; 1-PHENYL-3-METHYL-4-BENZOYL-PYRAZALONE-5; 8-HYDROXYQUINOLINE;

D O I：

10.1080/01496395.2013.836673

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The synergistic solvent extraction of Neodymium(III) with mixture of triisooctylamine (Alamine 308, R3N) and bis(2,4,4-trimethylpentyl) monothiophosphinic acid (Cyanex 302, (HX)(2)) in kerosene from chloride solutions has been investigated. A significant synergistic effect was found by the addition of Cyanex 302 to Alamine 308. The synergistic enhancement coefficient was calculated to be 44.1 for Nd at a mole fraction of 0.2 of Cyanex 302 in the mixture. Results of the effect of equilibrium pH on the distribution ratio of Nd suggested two moles of H+ released in the extraction of Nd with a mixture of extractants. The effect of variation of one extractant at a fixed concentration of the other extractant has been carried out in order to determine the extracted species as NdClX2.2R(3)N. The endothermic nature of extraction with the mixture of extractants was confirmed by the temperature effect and thermodynamic parameters H, G, and S were calculated.

引用

页码：130 / 136

页数：7

共 33 条

[1] Liquid-liquid extraction of sulphuric acid from zinc bleed stream
Agrawal, Archana
Kumari, S.
Sahu, K. K.
[J]. HYDROMETALLURGY, 2008, 92 (1-2) : 42 - 47
[2] Solvent extraction of some lanthanides from chloride and nitrate solutions by binary extractants
Belova, V. V.
Voshkin, A. A.
Kholkin, A. I.
Payrtman, A. K.
[J]. HYDROMETALLURGY, 2009, 97 (3-4) : 198 - 203
[3] BROWN CG, 1979, J CHEM TECHNOL BIOT, V29, P193
[4] Extraction and separation of thorium(IV) and praseodymium (III) with CYANEX 301 and CYANEX 302 from nitrate medium
El-Hefny, NE
Daoud, JA
[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2004, 261 (02) : 357 - 363
[5] SYNERGIC LIQUID-LIQUID-EXTRACTION STUDIES OF NEODYMIUM AND PRASEODYMIUM WITH MIXTURES OF TRIBUTYL-PHOSPHATE AND ALIQUAT-336 IN NITRATE MEDIA
GAIKWAD, AG
DAMODARAN, AD
[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES, 1992, 163 (02): : 277 - 288
[6] Solvent extraction of rare earth elements with mixtures of sec-octylphenoxy acetic acid and bis(2,4,4-trimethylpentyl) dithiophosphinic acid
Jia, Qiong
Tong, Shanshan
Li, Zhiying
Zhou, Weihong
Li, Hongfei
Meng, Shulan
[J]. SEPARATION AND PURIFICATION TECHNOLOGY, 2009, 64 (03) : 345 - 350
[7] Selective separation of Scandium(III) and Yttrium(III) from other rare earth elements using cyanex302 as an extractant
Karve, Manjusha
Vaidya, Bhagyashree
[J]. SEPARATION SCIENCE AND TECHNOLOGY, 2008, 43 (05) : 1111 - 1123
[8] Solvent extraction of neodymium ions from hydrochloric acid solution using PC88A and saponified PC88A
Lee, MS
Lee, JY
Kim, JS
Lee, GS
[J]. SEPARATION AND PURIFICATION TECHNOLOGY, 2005, 46 (1-2) : 72 - 78
[9] Mathur J.N., 1983, Solvent Extr. Ion Exch, V1, P349, DOI DOI 10.1080/07366298308918406
[10] Synergistic Effect in the Solvent Extraction and Separation of Lanthanoids by 4-(4-Fluorobenzoyl)-3-methyl-1-phenyl-pyrazol-5-one in the Presence of Monofunctional Neutral Organophosphorus Extractants
Petrova, Maria A.
Kurteva, Vanya B.
Lubenov, Lubomir A.
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (21) : 12170 - 12176

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