Effect of complexing agent on transport of lanthanoid elements across versatic acid liquid membrane

Journal Article · Mon Jun 01 00:00:00 EDT 1992 · Separation Science and Technology; (United States)

DOI:https://doi.org/10.1080/01496399208019730· OSTI ID:5158511

Nakamura, Shigeto; Ohashi, Sinichi; Akiba, Kenichi ^[1]

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1. Tohoku Univ., Sendai (Japan)

Transport of several trivalent lanthanoids (La, Nd, Sm, Eu, Tb, Tm, and Lu) was examined across a supported liquid membrane (SLM) containing Versatic 10 (VA10) in kerosene. Lanthanoids in the feed solution can be effectively transported and concentrated into the product solution. Separation factors obtained from the transport rates for lighter lanthanoids were larger than those for heavier lanthanoids, in agreement with the result on the distribution ratios in liquid-liquid extraction. The separation factors for heavier lanthanoids were enhanced by the addition of citrate to the feed solution. The transport rate was controlled by the extraction process from the feed solution to the SLM and the diffusion process of lanthanoid VA10 complexes in SLM.

• OSTI ID: 5158511
• Journal Information: Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 27:7; ISSN 0149-6395; ISSN SSTED
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ADDITIVES
AMINO ACIDS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CARRIERS
CHELATING AGENTS
CITRATES
COMPARATIVE EVALUATIONS
COMPLEXES
DATA
DAYS LIVING RADIOISOTOPES
DIFFUSION
EDTA
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
ENERGY SOURCES
EUROPIUM
EVALUATION
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
EXTRACTION
FOSSIL FUELS
FUELS
GAS OILS
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
KEROSENE
LANTHANUM
LANTHANUM 140
LANTHANUM ISOTOPES
LIQUID FUELS
LUTETIUM
LUTETIUM 177
LUTETIUM ISOTOPES
MEMBRANE TRANSPORT
MEMBRANES
METALS
NEODYMIUM
NEODYMIUM 147
NEODYMIUM ISOTOPES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
PERFORMANCE
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PH VALUE
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RARE EARTHS
SAMARIUM
SAMARIUM 153
SAMARIUM ISOTOPES
SEPARATION PROCESSES
SUPPORTED LIQUID MEMBRANES
TERBIUM
TERBIUM 160
TERBIUM ISOTOPES
THULIUM
THULIUM 170
THULIUM ISOTOPES
TRACER TECHNIQUES