Synergistic extraction of americium(III) by TTA and crown ethers
Description
Synergistic extraction of actinide elements by β-diketone and neutral multidentate ligands was studied. This report deals with TTA extraction of Am(III) from 0.1M lithium perchlorate or 0.1M tetramethylammonium perchlorate aqueous phase to benzene, 1,2-dichloroethane, or cyclohexane in the presence of such various crown ethers, CEs, as 12C4, 15C5, 18C6, DC18C6, DB18C6, DC24C8, DB24C8. In determining the extracted species of 1:3:1 complex, Am(TTA)3CE, the synergic equilibrium constants, βs, were determined, the value of which could not be explained on the basis of only the basicity of CEs, and hence, such other factors as the steric effect should be taken into account. The advantage of TTA/CE synergistic extraction in the separation between Am(III) and U(VI) or Th(IV) is discussed
Additional details
Publishing Information
- Publisher
- American Nuclear Society.
- Imprint Place
- Washington, DC (United States)
- Imprint Title
- Second international conference on methods and applications of radioanalytical chemistry. Abstracts
- Imprint Pagination
- 88 p.
- Journal Page Range
- p. 21.
Conference
- Title
- International topical conference on methods and applications of radioanalytical chemistry II (MARC-2).
- Dates
- 21-27 Apr 1991.
- Place
- Kona, HI (United States).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23074204
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ACID NEUTRALIZING CAPACITY; AMERICIUM; AMERICIUM IONS; AMMONIUM PERCHLORATES; AQUEOUS SOLUTIONS; COMPLEXES; LITHIUM PERCHLORATES; POLYETHYLENE GLYCOLS; SOLVENT EXTRACTION; SYNERGISM; THERMODYNAMICS; THORIUM IONS; TTA; URANIUM IONS
- Descriptors DEC
- ACTINIDES; ALKALI METAL COMPOUNDS; AMMONIUM COMPOUNDS; CHARGED PARTICLES; CHEMISTRY; CHLORINE COMPOUNDS; DISPERSIONS; ELEMENTS; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; HOMOGENEOUS MIXTURES; IONS; KETONES; LITHIUM COMPOUNDS; METALS; MIXTURES; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC POLYMERS; ORGANIC SULFUR COMPOUNDS; OXYGEN COMPOUNDS; PERCHLORATES; POLYMERS; SEPARATION PROCESSES; SOLUTIONS; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS; WATER CHEMISTRY
Optional Information
- Secondary number(s)
- CONF-910422--.