Determination of optimum conditions for the extraction and separation of lanthanum, cerium, yttrium and thorium using Taguchi method


Chaibou Yacouba A., Oral A. E., Sanda Bawa A., Sert S., Kaptanoglu I. G., Türközü D. A., ...More

Journal of Radioanalytical and Nuclear Chemistry, vol.332, no.11, pp.4807-4818, 2023 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 332 Issue: 11
  • Publication Date: 2023
  • Doi Number: 10.1007/s10967-023-08908-2
  • Journal Name: Journal of Radioanalytical and Nuclear Chemistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Analytical Abstracts, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, EMBASE, Food Science & Technology Abstracts, INSPEC, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.4807-4818
  • Keywords: Extraction, Lanthanides, Separation, Taguchi method, Thorium
  • Van Yüzüncü Yıl University Affiliated: Yes

Abstract

Taguchi method was applied to determine the optimum conditions for the extraction and separation of some lanthanides using three organic extractants. It was found that the optimum results were obtained with trioctylphosphine oxide (TOPO). The extraction efficiency and distribution coefficient of La(III), Ce(III), Y(III) and Th(IV) increased by increasing the salt concentration. Under these conditions 1 M HNO3, 0.1 M TOPO and 10–1 M KSCN, the extraction efficiency of all metals reached 85%. Based to the Pourbaix diagrams La3+, Ce3+, Y3+ and Th4+ were formed and the stoichiometry of the extracted complexes were [Ln(NO3)3·2TOPO]org and [Th(NO3)4·TOPO]org .