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Mixed ligand chelate extraction of lanthanides with N-m-trifluoromethylbenzoylphenylhydroxylamine systems

Technical Report ·
OSTI ID:5491923

A study of the equilibrium extraction behavior of a series of representative tervalent lanthanide ions, Pr, Eu and Yb, was carried out with chloroform solutions containing N-benzoylphenylhydroxylamine, N-m-trifluoromethylbenzoylphenylhydroxylamine (HL) either alone or combined with 1,10-phenanthroline (phen). The results demonstrated that the lanthanides are extracted as LnL/sub 3/ x 2HL or in the presence of phen as LnL/sub 3/ x HL phen for Pr and Eu, and LnL/sub 3/ x 2phen for Eu and Yb. The extraction constants, separation factors, and composition of adduct complexes for the two extractants were compared. 12 refs., 4 figs., 4 tabs.

Research Organization:
Arizona Univ., Tucson (USA). Dept. of Chemistry
DOE Contract Number:
AC02-76ER04073
OSTI ID:
5491923
Report Number(s):
DOE/ER/04073-16; ON: DE85014275
Country of Publication:
United States
Language:
English