Synergistic extraction of uranium(VI) with primary amine N1923 and TOPO
- 1. Shandong University, Jinan (China). Dept. of Chemistry
- 2. Qingdao University (China). Dept. of Chemistry, Normal College
- 3. Academia Sinica, Shanghai, SH (China). Shanghai Inst. of Nuclear Research
Description
The synergistic extraction of uranium(VI) from sulfuric acid solution with primary amine N1923 and tri-octylphosphine oxide (TOPO) in n-heptane was studied. When the mole ratio of primary amine N1923 and TOPO is about 2:1, the distribution coefficient will be the maximum. This result shows that primary amine N1923 and TOPO could exhibit the distinct synergistic effect for extraction of uranium(VI) from sulfuric acid solution. From the results of the extraction, it was suggested that the composition of synergistic extraction species is (RNH3)UO2(SO4)2 x TOPO. The equilibrium constant (K12) of synergistic extraction reaction has been evaluated, to be 1.07 x 109. In addition, the integration phenomenon of N1923 and TOPO have been discussed, the integration constant (K3) is 1.60 x 102. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 231
- Journal Issue
- 1-2
- Journal Page Range
- p. 199-202
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 29040859
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- AMINES; DISTRIBUTION FUNCTIONS; EQUILIBRIUM; SOLVENT EXTRACTION; SULFURIC ACID; SYNERGISM; TOPO; URANIUM COMPLEXES
- Descriptors DEC
- ACTINIDE COMPLEXES; COMPLEXES; EXTRACTION; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHINE OXIDES; SEPARATION PROCESSES; SULFUR COMPOUNDS
Optional Information
- Notes
- 4 refs.