Use of extraction chromatography for thorium purification from Eskisehir—Beylikahir Thorium-REEs ore deposit

HİÇSÖNMEZ Ü., Eral M.

Radiochimica Acta, cilt.89, sa.11-12/2001, ss.805, 2001 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 89 Sayı: 11-12/2001
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1524/ract.2001.89.11-12.805
  • Dergi Adı: Radiochimica Acta
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.805
  • Anahtar Kelimeler: extraction chromatography, thorium, rare earth element, TOPO
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

The extraction chromatography method was used to separate thorium from acidic leach solution. The separation of thorium was realized on silica gel column coated with tri-octlyphosphine oxide (TOPO). The extraction yield of thorium on this column from nitric acid leach solution is 91.9%. Then thorium was eluted by using 0.5M H2SO4 solution, and elution yield was determined as 96.5%. The chemical analysis of H2SO4 fractions indicated that thorium was concentrated and purified succesfully by this method. As a result, thorium was recovered in dilute leach solution with a yield of 81.0 ± 6.8%. © 2001, Oldenbourg Wissenschaftsverlag GmbH. All rights reserved.