Published 1980
| Version v1
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Chelating extractants of improved selectivity. Progress report, 1 August 1979-31 July 1980
Creators
Description
During the current contract year, mixed ligand chelate extraction systems for separating lanthanides was extended to elucidating the underlying reasons for the observed enhancement by quaternary ammonium salts. Equilibrium studies reveal the formation of anionic complexes (LnL4.HL-) (where HL is 8-quinolinol) that was extracted when paired with a quaternary ammonium ion. Lathanum, as a lone exception was extracted as R4N+, LaL4-. Work is underway in the application of similar extractants, 5,7-dibromo-8-quinolinol and Kelex 100 (a 7-alkenyl-8-quinolinol) to the separation of lanthanides
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS., PC A02/MF A01.
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The record is publicly accessible, but files are restricted to users with access.
Additional details
Publishing Information
- Imprint Pagination
- 15 p.
- Report number
- COO--4073-4
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 11568730
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Progress Report
- Descriptors DEI
- AMMONIUM COMPOUNDS; CHELATES; LANTHANUM; LIGANDS; QUATERNARY COMPOUNDS; QUINOLINES; RESEARCH PROGRAMS; SOLVENT EXTRACTION
- Descriptors DEC
- AMINES; AZINES; COMPLEXES; ELEMENTS; HETEROCYCLIC COMPOUNDS; METALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PYRIDINES; RARE EARTHS; SEPARATION PROCESSES