Extraction Behavior of Samarium with Alkane-α,ω-diyl bis (O,O-dialkyl-phosphonate)s

Authors

  • Concepcion S. Mendoza Chemistry Department, University of San Carlos, Cebu City
  • Satsuo Kamata Department of Applied Chemistry & Chemical Engineering, Kagoshima University, Kagoshima

DOI:

https://doi.org/10.26534/kimika.v16i2.41-45

Keywords:

alkane-α, ω-diyl bis(O, O-dialkylphosphonate)s, samarium, solvent extraction

Abstract

The alkane-α,ω-diyl bis(O,O-dialkylphosphonate)s, which are easily accessible by synthesis, have been used in solvent extraction studies of rare-earth metal ions. The important role played by structural modifications of the bis(dialkylphosphonate) molecule is shown by the differences in the samarium extractabilities. The alkane-α,ω-diyl bis( dialkylphosphonate) ligands dissolved in nitrobenzene appear to have promising efficiency for the extraction of samarium with picrate ion and in nitrate medium, forming an extractable complex composition of Sm(III):Pic:NO3-:L = 1:1:2:2. At these conditions, the extraction ability of the ligands are higher than tributyl phosphate (TBP), a known organophosphate extractant for lanthanides. A two-time cross-current contact quantitative back-extraction process from the organic phase is possible with 0.5M HCI. Results of the extraction studies will find application in the extraction, separation, enrichment and determination of lanthanides, specifically on samarium.

Downloads

How to Cite

Mendoza, C. S., & Kamata, S. (2000). Extraction Behavior of Samarium with Alkane-α,ω-diyl bis (O,O-dialkyl-phosphonate)s. KIMIKA, 16(2), 41–45. https://doi.org/10.26534/kimika.v16i2.41-45

Issue

Vol. 16 No. 2 (2000)

Section

Research Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).