Published 1985 | Version v1
Report Metadata-only

Diluent effect on the extraction of uranium (VI) from hydrochloric acid solutions by long-chain aliphatic amines

Creators

  • 1. Shizuoka Univ., Hamamatsu (Japan). Faculty of Engineering

Description

The extraction of uranium(VI) from hydrochloric acid solutions by trioctylamine (TOA) and trioctylmethylammonium chloride (TOMAC) have been examined using various diluents such as benzene, chlorobenzene, o-dichlorobenzene, toluene, m-xylene, nitrobenzene, carbon tetrachloride, chloroform, 1,1-dichloroethane and 1,2-dichloroethane. It is found that by assuming a regular solution, the distribution coefficient and the enthalpy change associated with the metal extraction can be expressed in terms of the solubility parameter of TOMAC, diluent and the complex formed in the organic phase and their molar volumes, and in contrast that a parabolic dependence of the distribution coefficient on the solubility parameter of diluent is not observed in the extraction by TOA in organic solvents, although the enthalpy change associated with uranium extraction exhibits a parabolic dependence on the solubility parameter. Further the results for the extraction of divalent copper, zinc and cadmium from hydrochloric acid solutions by TOA and TOMAC are investigated in comparison with those of uranium(VI). (author)

Part of:
Chemical aspects of nuclear methods of analysis

Additional details

Publishing Information

Imprint Title
Chemical aspects of nuclear methods of analysis
Imprint Pagination
281 p.
Journal Page Range
p. 189-206.
Report number
IAEA-TECDOC--350

Conference

Title
Final research co-ordination meeting on chemical aspects of nuclear methods of analysis.
Dates
2-5 Oct 1984.
Place
Hamamatsu (Japan).

INIS

Country of Publication
International Atomic Energy Agency (IAEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
17027157
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
AQUEOUS SOLUTIONS; CHELATING AGENTS; DISTRIBUTION FUNCTIONS; ENTHALPY; EXPERIMENTAL DATA; HYDROCHLORIC ACID; SOLUBILITY; SOLVENT EXTRACTION; SOLVENTS; TOA; URANIUM COMPOUNDS
Descriptors DEC
ACTINIDE COMPOUNDS; AMINES; CHLORINE COMPOUNDS; DATA; DISPERSIONS; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INFORMATION; INORGANIC ACIDS; MIXTURES; NUMERICAL DATA; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; SEPARATION PROCESSES; SOLUTIONS; THERMODYNAMIC PROPERTIES

Optional Information

Notes
22 refs, 9 figs, 5 tabs.