Theoretical prediction of distribution coefficients of Sr2+ in nuclear waste/ionic liquid phases using COSMO-RS model

被引：6

作者：

Vishnoi, Ankit ^{[1
]}

Banerjee, Tamal ^{[1
]}

Ghosh, Pallab ^{[1
]}

Ali, Sk. Musharaf ^{[2
]}

Shenoy, K. T. ^{[2
]}

机构：

[1] Indian Inst Technol Guwahati, Dept Chem Engn, Gauhati 781039, Assam, India

[2] Bhabha Atom Res Ctr, Div Chem Engn, Bombay 400085, Maharashtra, India

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2014年 / 133卷

关键词：

COSMO-RS; Crown ether; Extraction efficiency; Ionic liquid; Radioactive material; TEMPERATURE IONIC LIQUIDS; LAUNDRY WASTE-WATER; CROWN-ETHERS; SOLVENT-EXTRACTION; STRONTIUM; METAL; SORPTION; REMOVAL; MONTMORILLONITE; EQUILIBRIUM;

D O I：

10.1016/j.seppur.2014.06.049

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Extraction of radio-strontium from acidic nuclear waste streams was studied by COSMO-RS in presence and in absence of strontium-selective crown ethers. The crown ethers studied in this work were dicyclohexano-18-crown-6 and di-tert-butyl-dicyclohexano-18-crown-6. The ionic liquids studied were [BuMeim] [PF6], [HeMeim] [PF6], [OcMeim] [PF6], [BuMeim] [NTf2], [HeMeim] [NTf2] and [OcMeim] [NTf2]. Two different strategies were used in our modeling approach. In the first approach, strontium was inserted in the crown ether whereas, in the second approach, an equimolar composition of crown ether and strontium nitrate was used. The former approach described the effects of crown ethers, alkyl chain length and presence of acidic medium successfully. The COSMO-RS model was further bench-marked by predicting the experimental trend of distribution coefficient of CsNO3 in ionic liquid with respect to the length of alkyl chain. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：138 / 148

页数：11

共 45 条

[1] COSMO-RS based predictions for the desulphurization of diesel oil using ionic liquids: Effect of cation and anion combination [J].

Anantharaj, R. ;

Banerjee, Tamal .

FUEL PROCESSING TECHNOLOGY, 2011, 92 (01) :39-52

[2] COSMO-RS-Based Screening of Ionic Liquids as Green Solvents in Denitrification Studies [J].

Anantharaj, R. ;

Banerjee, Tamal .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2010, 49 (18) :8705-8725

[3] Prediction of binary VLE for imidazolium based ionic liquid systems using COSMO-RS [J].

Banerjee, T ;

Singh, MK ;

Khanna, A .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (09) :3207-3219

[4] Liquid-liquid equilibrium for ionic liquid systems using COSMO-RS: Effect of cation and anion dissociation [J].

Banerjee, Tamal ;

Verma, Kaushal Kishore ;

Khanna, Ashok .

AICHE JOURNAL, 2008, 54 (07) :1874-1885

[5] Multicomponent liquid-liquid equilibria prediction for aromatic extraction systems using COSMO-RS [J].

Banerjee, Tamal ;

Sahoo, Ranjan Kumar ;

Rath, Swagat. S. ;

Kumar, Rakesh ;

Khanna, Ashok .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (04) :1292-1304

[6] CO2 capture by a task-specific ionic liquid [J].

Bates, ED ;

Mayton, RD ;

Ntai, I ;

Davis, JH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (06) :926-927

[7]

Birks J. B., 1964, THEORY PRACTICE SCIN, DOI [DOI 10.1016/C2013-0-01791-4, 10.1016/C2013-0-01791-4]

[8] Integrated management of radioactive strontium contamination in aqueous stream systems [J].

Chaalal, O ;

Islam, MR .

JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2001, 61 (01) :51-59

[9] Influence of structural variation in room-temperature ionic liquids on the selectivity and efficiency of competitive alkali metal salt extraction by a crown ether [J].

Chun, S ;

Dzyuba, SV ;

Bartsch, RA .

ANALYTICAL CHEMISTRY, 2001, 73 (15) :3737-3741

[10] Cadmium removal from single- and multi-metal (Cd plus Pb plus Zn plus Cu) solutions by sorption on hydroxyapatite [J].

Corami, Alessla ;

Mignardi, Silvano ;

Ferrini, Vincenzo .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2008, 317 (02) :402-408

← 1 2 3 4 5 →