Influence of the ammonium salt anion on the synergistic solvent extraction of lanthanides with mixtures of thenoyltrifluoroacetone and tridecylamine

Journal Article · Sat Aug 01 00:00:00 EDT 1998 · Solvent Extraction and Ion Exchange

DOI:https://doi.org/10.1080/07360299808934573· OSTI ID:346975

Dukov, I L; Jordanov, V M ^[1]

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1. Univ. of Chemical Technology and Metallurgy, Sofia (Bulgaria). Dept. of Inorganic Chemistry

The synergistic solvent extraction of Pr, Gd and Yb with mixtures of thenoyltrifluoroacetone (HTTA) and primary ammonium salt (tridecylammonium chloride or perchlorate, TDAH(Cl, ClO{sub 4})) in C{sub 6}H{sub 6} has been studied. The composition of the extracted species have been determined as Ln(TTA){sub 3}TDAHA(A{sup {minus}} = Cl{sup {minus}} or ClO{sub 4}{sup {minus}}). The values of the equilibrium constant K{sub T,S} have been calculated. The influence of the ammonium salt anion on the extraction process has been discussed. The separation factors of the pairs Gd/Pr and Yb/Gd have been determined.

• Sponsoring Organization: USDOE
• OSTI ID: 346975
• Journal Information: Solvent Extraction and Ion Exchange, Vol. 16, Issue 5; Other Information: PBD: Aug 1998
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
40 CHEMISTRY
PRASEODYMIUM
GADOLINIUM
YTTERBIUM
SOLVENT EXTRACTION
CHELATING AGENTS
SYNERGISM
CHEMICAL COMPOSITION