Published March 1990
| Version v1
Journal article
Removal of ruthenium from PUREX process, 2
Description
A new method was developed for the removal of ruthenium from nitric acid solutions. Ruthenium in 3 M nitric acid solution is oxidized electrolytically to ruthenium tetroxide, and the tetroxide is extracted into n-paraffin. The ruthenium tetroxide extracted in paraffin is readily reduced to ruthenium dioxide by the solvent as black suspension, and it can be easily filtered off through an ordinary cellulose fiber filter. By this method, ruthenium, one of the most troublesome fission elements in PUREX Process, can be removed. (author)
Additional details
Additional titles
- Subtitle (English)
- Fundamental research of electrolytic oxidation of ruthenium
Publishing Information
- Journal Title
- Journal of Nuclear Science and Technology (Tokyo)
- Journal Volume
- 27
- Journal Issue
- 3
- Series
- J. Nucl. Sci. Technol. (Tokyo).
- Journal Page Range
- 262-266
- ISSN
- 0022-3131
- CODEN
- JNSTA
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 21086023
- Subject category
- S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
- Descriptors DEI
- AQUEOUS SOLUTIONS; CERIUM COMPOUNDS; CURRENT DENSITY; ELECTROLYSIS; MEDIUM TEMPERATURE; NITRIC ACID; OXIDATION; PARAFFIN; PUREX PROCESS; RUTHENIUM OXIDES; SOLVENT EXTRACTION; TEMPERATURE DEPENDENCE
- Descriptors DEC
- ALKANES; CHALCOGENIDES; CHEMICAL REACTIONS; DISPERSIONS; HOMOGENEOUS MIXTURES; HYDROCARBONS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MIXTURES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; REPROCESSING; RUTHENIUM COMPOUNDS; SEPARATION PROCESSES; SOLUTIONS; TRANSITION ELEMENT COMPOUNDS; WAXES