Extraction of light, medium and heavy rare-earth elements using synergist extractants developed from ionic liquid and conventional extractants

被引：15
作者：
Hidayah, Nur Nadiatul [1 ]
Abidin, Sumaiya Zainal [1 ,2 ]
机构：
[1] Univ Malaysia Pahang, Coll Engn Technol, Fac Chem & Proc Engn Technol, Gambang 26300, Pahang, Malaysia
[2] Univ Malaysia Pahang, Ctr Excellence Adv Res Fluid Flow CARIFF, Gambang 26300, Pahang, Malaysia
来源：
COMPTES RENDUS CHIMIE | 2019年 / 22卷 / 11-12期
关键词：
Solvent extraction; Rare-earth elements; Ionic liquid; Synergist extractant; Organic solvent; SOLVENT-EXTRACTION; SELECTIVE EXTRACTION; METAL-IONS; SEPARATION; ACID; RECOVERY; VISCOSITY; DENSITY; YTTRIUM;
D O I：
10.1016/j.crci.2019.10.006
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This study focuses on the extraction of rare-earth elements (REE) using eight newly formulated synergist extractants and the performance was compared with that using the conventional extractants. Extraction was conducted on selected REE namely praseodymium (Pr), gadolinium (Gd) and dysprosium (Dy) representing light, medium and heavy REE, respectively. The synergist extractant of A336-[C(2)mim][NTf2] appeared to be the most positive synergist extractant, especially in the extraction of Pr and Dy based on a 90% increase in the extraction efficiency compared to the conventional extractant of A336. Apparently, the presence of the ionic liquid [C(2)mim][NTf2] in the synergist extractant altered the anion exchanger of A336 and successfully formulated extractant with a high extraction efficiency. The characterisation studies of A336-[C(2)mim][NTf2] show the synergist compatibility between A336 and [C(2)mim][NTf2]. Apparently, not all synergist extractants could elevate the extraction potential until conducting a sequence of tests. (C) 2019 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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收藏
页码：728 / 744
页数：17
相关论文
共 74 条
[51]  
Sakaki K., 2014, SYNTHESIS RARE EARTH
[52]   Dual Ionic and Organic Nature of Ionic Liquids [J].
Shi, Rui ;
Wang, Yanting .
SCIENTIFIC REPORTS, 2016, 6
[53]   Highly Efficient Extraction Separation of Lanthanides Using a Diglycolamic Acid Extractant [J].
Shimojo, Kojiro ;
Aoyagi, Noboru ;
Saito, Takumi ;
Okamura, Hiroyuki ;
Kubota, Fukiko ;
Goto, Masahiro ;
Naganawa, Hirochika .
ANALYTICAL SCIENCES, 2014, 30 (02) :263-269
[54]  
Singh G., 2007, Chemistry Of Lanthanides And Actinides
[55]  
Stojanovic A, 2011, IONIC LIQUIDS: THEORY, PROPERTIES, NEW APPROACHES, P657
[56]  
Suli LiyananadirahMat., 2017, CHEM ENG RES DES, P20, DOI [10.3329/cerb.v19i0.33773, DOI 10.3329/CERB.V19I0.33773]
[57]   Synergistic extraction and separation of yttrium from heavy rare earths using mixture of sec-octylphenoxy acetic acid and bis(2,4,4-trimethylpentyl)phosphinic acid [J].
Sun, XB ;
Zhao, JM ;
Meng, SL ;
Li, DQ .
ANALYTICA CHIMICA ACTA, 2005, 533 (01) :83-88
[58]   The synergistic extraction of heavy rare earth elements using EHEHP-type and BTMPP-type functional ionic liquids [J].
Sun, Xiaoqi ;
Dong, Yamin ;
Wang, Yanliang ;
Chai, Yujun .
RSC ADVANCES, 2015, 5 (61) :49500-49507
[59]   The Adjustable Synergistic Effects Between Acid-Base Coupling Bifunctional Ionic Liquid Extractants for Rare Earth Separation [J].
Sun, Xiaoqi ;
Waters, Kristian E. .
AICHE JOURNAL, 2014, 60 (11) :3859-3868
[60]   Mechanistic investigation of solvent extraction based on anion-functionalized ionic liquids for selective separation of rare-earth ions [J].
Sun, Xiaoqi ;
Luo, Huimin ;
Dai, Sheng .
DALTON TRANSACTIONS, 2013, 42 (23) :8270-8275
12345678