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Study of Cs extraction in an ionic liquid system using a common anion in both aqueous and ionic liquid phases

  • Jung-Weon Choi
  • Hayeon Ryu
  • Wonzin Oh
  • Sang-June ChoiEmail author
Article
  • 23 Downloads

Abstract

The effect of Tf2N, as a common anion in aqueous and ionic liquid (IL) phases, on Cs extraction in the IL system was investigated using C2mimTf2N as an IL and DCH18C6 as an extractant. The “common anion (Tf2N) effect” operated via the movement of Cs+·Tf2N from the aqueous phase into the IL phase by extraction in the form of Cs+·extractant·Tf2N, without any traditional cation exchange. The extraction product was recovered as a precipitate using a small amount of IL, which facilitated precipitation via supersaturation.

Keywords

Extraction Common anion effect Radioactive liquid waste Ionic liquids Cesium Precipitate 

Notes

Acknowledgements

This research was supported by the Nuclear Energy Development Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Science and ICT (2018M2B2B1065631).

References

  1. 1.
    Seddon KR (1997) Ionic liquids for clean technology. J Chem Technol Biotechnol 68:351–356CrossRefGoogle Scholar
  2. 2.
    Kwon SM, Choi JW, Cho SY, Lee HK, Oh WZ, Choi SJ (2017) A novel method for separating Cs+ from liquid radioactive waste using ionic liquids and a selective extractant. J Radioanal Nucl Chem 311:1605–1611CrossRefGoogle Scholar
  3. 3.
    Cho SY, Choi JW, Choi SJ, Oh WZ (2019) Studies on a new solid-liquid Cs separation using the ionic liquid extraction system in comparison with the conventional adsorption. J Radioanl Nucl Chem 319:387–392CrossRefGoogle Scholar
  4. 4.
    Lee HK, Lee HJ, Choi JW, Oh WZ, Choi SJ (2017) Selective removal of cesium ions from aqueous solutions by zinc hexacyanoferrate functionalized magnetic carbon nanotube composites as adsorbent. J Radioanl Nucl Chem 314:2357–2363CrossRefGoogle Scholar
  5. 5.
    Awual MR, Sinich S, Tomitsugu T, Hideaki S, Yoshihiro O, Tsuyoshi Y (2014) Radioactive cesium removal from nuclear wastewater by novel inorganic and conjugate adsorbents. Chem Eng J 242:127–135CrossRefGoogle Scholar
  6. 6.
    International Atomic Energy Agency (1999) Review of the factors affecting the selection and implementation of waste management technologies; IAEA-TECDOC-1096. IAEA, Vienna, AustriaGoogle Scholar
  7. 7.
    Charles WF (2000) Rethinking high-level waste disposal: separate disposal of high-heat radionuclides (90Sr and 137Cs). Nucl Technol 131:252–268CrossRefGoogle Scholar
  8. 8.
    Luo H, Dai S, Bonnesen PV, Buchanan AC, Holbrey JD, Bridges NJ, Rogers RD (2004) Anal Chem 76:3078–3083CrossRefGoogle Scholar
  9. 9.
    Hua Z, Shuqian X, Peisheng M (2005) Use of ionic liquids as ‘green’ solvents for extractions. J Chem Technol Biotechnol 80:1089–1096CrossRefGoogle Scholar
  10. 10.
    Xu C, Yuan LY, Shen XH, Zhai ML (2010) Efficient removal of cesium ions from aqueous solution using a calix crown ether in ionic liquids: mechanism and radiation effect. Dalton Trans 39:3897–3902CrossRefGoogle Scholar
  11. 11.
    Sun X, Luo H, Dai S (2012) Ionic liquids-based extraction: a promising strategy for the advanced nuclear fuel cycle. Chem Rev 112:2100–2128CrossRefGoogle Scholar
  12. 12.
    Dietz ML, Dzielawa JA, Laszak I, Young BA, Jensen MP (2005) Influence of solvent structural variations on the mechanism of facilitated ion transfer into room-temperature ionic liquids: the effect of solvent humidity investigated by molecular dynamics simulations. Phys Chem 7:124–135Google Scholar
  13. 13.
    Dai S, Ju YH, Barnes CE (1999) Solvent extraction of strontium nitrate by a crown ether using room-temperature ionic liquids. J Chem Soc Dalton Trans 8:1201CrossRefGoogle Scholar
  14. 14.
    Visser AE, Swatloski RP, Reichert WM, Griffin ST, Rogers RD (2000) Traditional extractants in nontraditional solvents: groups 1 and 2 extraction by crown ethers in room-temperature ionic liquids. Ind Eng Chem Res 39:3596CrossRefGoogle Scholar
  15. 15.
    Luo H, Dai S, Bonnesen PV (2004) Solvent extraction of Sr2+ and Cs+ based on room-temperature ionic liquids containing monoaza-substituted crown ethers. Anal Chem 76:2773CrossRefGoogle Scholar
  16. 16.
    Jensen MP, Dzielawa JA, Rickert P, Dietz ML (2002) EXAFS investigations of the mechanism of facilitated ion transfer into a room-temperature ionic liquid. J Am Chem Soc 124:10664CrossRefGoogle Scholar
  17. 17.
    Zhao D, Fei Z, Rosario S, Dyson PJ (2003) Synthesis and characterization of ionic liquids incorporating the nitrile functionality. Inorg Chem 43:2197–2205CrossRefGoogle Scholar
  18. 18.
    Burrell AK, Sesto RED, Baker SN, McCleskey TM, Baker GA (2007) The large scale synthesis of pure imidazolium and pyrrolidinium ionic liquids. Green Chem 9:449–454CrossRefGoogle Scholar
  19. 19.
    Ma W, Row KH (2018) Solid-phase extraction of chlorophenols in seawater using a magnetic ionic liquid molecularly imprinted polymer with incorporated silicon dioxide as a sorbent. J Chromatogr A 1559:78–85CrossRefGoogle Scholar
  20. 20.
    Choi SJ, Oh WZ, Choi JW, Lee HK, Kwon SM (2016) South Korea Patent No. 10-1663905, Kyungpook National UniversityGoogle Scholar
  21. 21.
    Choi SJ, Oh WZ, Choi JW, Lee HK, Kwon SM (2016) South Korea Patent No. 10-1668956, Kyungpook National UniversityGoogle Scholar
  22. 22.
    Lozano P, Diego TD, Carrie D, Vaultier M, Iborra JL (2003) Enzymatic ester synthesis in ionic liquids. J Mol Catal B Enzym 21:9–13CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Jung-Weon Choi
    • 1
  • Hayeon Ryu
    • 1
  • Wonzin Oh
    • 2
  • Sang-June Choi
    • 1
    • 2
    Email author
  1. 1.School of Architectural, Civil, Environmental, and Energy EngineeringKyungpook National UniversityDaeguRepublic of Korea
  2. 2.Research Institute of Advanced Energy TechnologyKyungpook National UniversityDaeguRepublic of Korea

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