Startseite Third phase formation behaviour of tris(2-methylbutyl) phosphate and tri-n-alkyl phosphates in the extraction of mineral acids and tetravalent metal ions
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Third phase formation behaviour of tris(2-methylbutyl) phosphate and tri-n-alkyl phosphates in the extraction of mineral acids and tetravalent metal ions

  • Subramee Sarkar , A. Suresh EMAIL logo und N. Sivaraman
Veröffentlicht/Copyright: 9. Juni 2021
Radiochimica Acta
Aus der Zeitschrift Radiochimica Acta Band 109 Heft 8

Abstract

The formation of third phase is a detrimental phenomenon witnessed in the nuclear separation processes during the extraction of certain metal salts by an organic solution, which comprises of a neutral extractant, tri-n-butyl phosphate dispersed in a non-polar diluent, n-dodecane (n-C12H26). In the present work, a comparative analysis on the third phase formation behaviour of three trialkyl phosphates, TBP, its linear and branched higher homologues tri-n-amyl phosphate and tris(2-methylbutyl) phosphate (T2MBP), respectively, have been provided which will be useful for the identification of an extractant with minimum third phase formation tendency. The organic phase splitting behaviour during the extraction of three mineral acids (HClO4, HCl and HNO3) and two tetravalent metal nitrates (Th(IV) and Zr(IV)) by trialkyl phosphates has been investigated to understand the influence of anionic and cationic components, respectively, in third phase formation of trialkyl phosphates. The effect of structure of the alkyl groups of trialkyl phosphate and chain length of diluents on third phase formation during Zr(IV) extraction from HNO3 media have also been studied. Overall, the third phase formation behaviour of T2MBP was found to be lower both for the extraction of mineral acid and Zr(IV), thereby indicating its potentiality for applications in various solvent extraction processes.

Keywords: extraction; TAP; TBP; T2MBP; third phase formation
Corresponding author: A. Suresh, Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research, Kalpakkam603102, India, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Supplementary Material

The online version of this article offers supplementary material (https://doi.org/10.1515/ract-2021-1023).

Received: 2021-02-25
Accepted: 2021-05-25
Published Online: 2021-06-09
Published in Print: 2021-08-26

© 2021 Walter de Gruyter GmbH, Berlin/Boston

Artikel in diesem Heft

  1. Frontmatter
  2. Original Paper
  3. Reactions of ozone and intermediate products of its decomposition with actinides, lanthanides and transition metals in aqueous solutions
  4. Review
  5. A review of the alpha radiolysis of extractants for actinide lanthanide separation in spent nuclear fuel reprocessing
  6. Original Papers
  7. Third phase formation behaviour of tris(2-methylbutyl) phosphate and tri-n-alkyl phosphates in the extraction of mineral acids and tetravalent metal ions
  8. Effect of gamma irradiation processing on total phenol and antioxidant capacities of the Iranian extract of propolis
  9. Radiometric analysis of micas used in many industries and evaluation of radiological hazards
https://doi.org/10.1515/ract-2021-1023
Schlagwörter für diesen Artikel
extraction; TAP; TBP; T2MBP; third phase formation

Artikel in diesem Heft

  1. Frontmatter
  2. Original Paper
  3. Reactions of ozone and intermediate products of its decomposition with actinides, lanthanides and transition metals in aqueous solutions
  4. Review
  5. A review of the alpha radiolysis of extractants for actinide lanthanide separation in spent nuclear fuel reprocessing
  6. Original Papers
  7. Third phase formation behaviour of tris(2-methylbutyl) phosphate and tri-n-alkyl phosphates in the extraction of mineral acids and tetravalent metal ions
  8. Effect of gamma irradiation processing on total phenol and antioxidant capacities of the Iranian extract of propolis
  9. Radiometric analysis of micas used in many industries and evaluation of radiological hazards
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