Published 1992
| Version v1
Journal article
Solvent extraction on rare earth elements with hexaaza-18-crown-6 and erythrosine A
Creators
- 1. Uniwersytet Adama Mickiewicza, Poznan (Poland). Inst. Chemii
Description
The liquid-liquid extraction of ion-pair complexes of rare earth elements with 1,4,7,10,13,16-hexaazacyclooctadecane (HA18C6) is described. The extraction constants (Dc) are reported. The following stoichiometry of extracted ion associate is proposed: Ln(OH)HA18C62+-erythrosine A2-. In strongly alkaline solutions (0.5 mol l-1 NaOH) significant differences in ion extraction efficiency of particular lanthanoids are observed. Therefore some rare earths (Pr3+, Nd3+, Sm3+, Eu3+, Gd3+, Tb3+) may be selectively extracted in presence of others (Y3+, Ho3+, Er3+, Tm3+, Yb3+, Lu3+). (author). 16 refs, 5 figs, 4 tabs
Additional details
Publishing Information
- Journal Title
- Chemia Analityczna
- Journal Volume
- 37
- Journal Issue
- 4
- Journal Page Range
- p. 427-435.
- ISSN
- 0009-2223
- CODEN
- CANWAJ
INIS
- Country of Publication
- Poland
- Country of Input or Organization
- Poland
- INIS RN
- 25046707
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CROWN ETHERS; ERBIUM COMPLEXES; ERYTHROSINE; EUROPIUM COMPLEXES; GADOLINIUM COMPLEXES; HOLMIUM COMPLEXES; LUTETIUM COMPLEXES; NEODYMIUM COMPLEXES; ORGANIC SOLVENTS; PRASEODYMIUM COMPLEXES; RARE EARTHS; SAMARIUM COMPLEXES; SOLVENT EXTRACTION; TERBIUM COMPLEXES; THULIUM COMPLEXES; YTTERBIUM COMPLEXES; YTTRIUM COMPLEXES
- Descriptors DEC
- COMPLEXES; ELEMENTS; ETHERS; EXTRACTION; METALS; NONAQUEOUS SOLVENTS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC IODINE COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; RARE EARTH COMPLEXES; SEPARATION PROCESSES; SOLVENTS; TRANSITION ELEMENT COMPLEXES
Optional Information
- Contract/Grant/Project number
- Problem MRI 32.7