Extraction of lanthanide(III) and uranyl(VI) from nitric acid solution by malonamides
- 1. Osaka Univ., Suita, Osaka (Japan). Dept. of Nuclear Engineering
Description
The extractive properties of two malonamide extractants, DMDBO3NPDA and DMDBMA were investigated for the extraction of lanthanide(III) and uranyl(VI) ions in benzene-nitric acid systems. It was found that DMDBO3NPDA has a higher extractive capacity than DMDBMA. The difference in their extracting capacities is discussed, based on the enthalpy changes for the extraction reactions and IR data for complexes of metal nitrates with malonamides. In addition, the applicability of a mixed solvent of n-dodecane and some aliphatic alcohols as a diluent for DMDBO3NPDA was examined. the longer the carbon chain and the higher the concentration of the aliphatic alcohol, the more the phase compatibility improves. The distribution ratios of neodymium(III) ion increase with an increase in the carbon chain length of linear aliphatic alcohol and with a decrease in its concentration
Additional details
Publishing Information
- Publisher
- Materials Research Society.
- Imprint Place
- Pittsburgh, PA (United States)
- ISBN
- 1-55899-253-7
- Imprint Title
- Scientific basis for nuclear waste management 18. Part 2
- Imprint Pagination
- 690 p.
- Series
- Materials Research Society symposium proceedings, Volume 353.
- Journal Page Range
- p. 1293-1300.
Conference
- Title
- 18. international symposium on the scientific basis for nuclear waste management.
- Dates
- 23-27 Oct 1994.
- Place
- Kyoto (Japan).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 28007048
- Subject category
- S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- AMIDES; EUROPIUM; EXPERIMENTAL DATA; LANTHANUM; NEODYMIUM; PERFORMANCE; REPROCESSING; SOLVENT EXTRACTION; SOLVENT PROPERTIES; URANYL COMPOUNDS
- Descriptors DEC
- ACTINIDE COMPOUNDS; DATA; ELEMENTS; EXTRACTION; INFORMATION; METALS; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; RARE EARTHS; SEPARATION PROCESSES; URANIUM COMPOUNDS
Optional Information
- Secondary number(s)
- CONF-941075--.