Solvent extraction of thorium from nitrate medium by TBP, Cyanex272 and their mixture

被引：0
作者：
Mostaan Shaeri
Meisam Torab-Mostaedi
Ahmad Rahbar Kelishami
机构：
[1] Iran Science and Technology University,Department of Chemical Engineering
[2] Nuclear Science and Technology Research Institute,Nuclear Fuel Cycle Research School
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2015年 / 303卷
关键词：
Solvent extraction; Thorium; TBP; Cyanex272;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The extraction behavior of thorium(IV) has been investigated with tri-butyl phosphate (TBP) and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex272) in kerosene from nitrate medium. The effect of operating variables including time, aqueous phase acidity (pH), extractant concentration and temperature were investigated. This study also examined the synergistic enhancement of the extraction of thorium(IV) from nitrate medium by mixtures of TBP and Cyanex272 for the first time. The optimum synergistic enhancement factor of 3.86 was obtained at a Cyanex272/TBP molar ratio of 1:4.
引用
收藏
页码：2093 / 2099
页数：6
相关论文
共 82 条
[1]  
Amaral JC(2010)Thorium and uranium extraction from rare earth elements in monazite sulfuric acid liquor through solvent extraction Miner Eng 23 498-503
[2]  
Morais CA(2007)Recovery of thorium(IV) from leached monazite solutions using counter-current extraction Int J Miner Process 81 217-223
[3]  
Ali AMI(2012)Studies on the separation and recovery of thorium from nitric acid medium using (2-ethyl hexyl) phosphonic acid, mono (2-ethyl hexyl) ester (PC88A)/n-dodecane as extractant system Sep Sci Technol 47 1748-1753
[4]  
El-Nadi YA(2004)Extraction and separation of thorium(IV) and praseodymium(III) with Cyanex301 and Cyanex302 from nitrate medium J Radioanal Nucl Chem 261 357-363
[5]  
Daoud JA(2014)Solvent extraction separation of uranium(VI) and thorium(IV) with neutral organophosphorus and amine ligands Fuel 116 595-600
[6]  
Aly HF(2002)Extraction of uranium, thorium and lanthanides using Cyanex-923: their separations and recovery from monazite J Radioanal Nucl Chem 251 451-456
[7]  
Dinkar AK(2013)Monazite-uranium separation and purification applying oxalic-nitrate-TBP extraction Arab J Nucl Sci Appl 46 30-42
[8]  
Singh SK(2006)Liquid–liquid extraction of Th(IV) with Cyanex302 J Radioanal Nucl Chem 270 461-464
[9]  
Tripathi SC(1996)Extraction of thorium from aqueous nitric acid solution by bis-2-(butoxyethyl ether) (DBC) J Radioanal Nucl Chem 203 161-167
[10]  
Verma R(1995)Solvent extraction of thorium from nitric acid solutions using di- J Radioanal Nucl Chem 198 409-421
123456789