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PREPARATION OF Pm$sup 149$$,$$sup 151$ BY SOLVENT EXTRACTION (BY DISCONTINUOUS COUNTERCURRENT EXTRACTION

Technical Report ·
OSTI ID:4655203
; ;
The quantitative study of mutual separation of lanthanons by nongradient solvent extraction system was undertaken. As an example, the recovery of pure Pm/ sup 149,151/, activity from irradiated Nd/sub 2/2O/sub 3/ was chosen. The di-(2- ethylhexyl) phosphoric acid (HDEHP) was chosen as organic solvent since the separation factor of adjacent lanthanons with HDEHP is higher ( approximates 2.5) than that with TBP ( approximates 1.9). This work can be extended to the preparation of Eu/sup 155/, Tb/sup 161/, Tm/sup 171/, and Lu/sup 177/ from irradiated Sm, Gd, Er, and Yb target in the carrier-free state. (auth)
Research Organization:
Atomic Energy Research Inst., Seoul, Korea
NSA Number:
NSA-17-035864
OSTI ID:
4655203
Report Number(s):
AERI-C/R-3
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

BUTYL PHOSPHATES
CHEMISTRY
COUNTER CURRENT
ERBIUM
EUROPIUM 155
GADOLINIUM
IMPURITIES
LUTETIUM 177
NEODYMIUM OXIDES
ORGANIC PHOSPHORUS COMPOUNDS
PRODUCTION
PROMETHIUM 149
PROMETHIUM 151
RADIATION EFFECTS
RARE EARTHS
RECOVERY
SAMARIUM
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
TARGETS
TERBIUM 161
THULIUM 171
YTTERBIUM