Separation of palladium from simulated intermediate radioactive waste/chloroacetic acid/nitrate medium by IRA-410 and IRA-900 anion exchangers
- 1. Atomic Energy Authority, Cairo (Egypt). Hot Laboratories Centre
Description
Separation of palladium by strongly basic anion exchangers IRA-110 and IRA-900 from intermediate radioactive liquid waste in chloroacetic acid/nitrate medium containing thirteen elements have been achieved. Different conditions have been studied, the effect of NaNO3 as salt content, chloroacetic acid and hydrogen ion concentration have been investigated. Selective recovery of palladium from the [ILLW] solution was achieved using the column technique. The selectivity increased by using chloroacetic acid/nitrate than in nitrate medium. The elution of palladium was carried out via reduction with formic acid where the rate of the reduction process was increased by decreasing the formic acid concentration till 50% followed by dissolving the separated palladium by nitric acid. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 251
- Journal Issue
- 2
- Journal Page Range
- p. 285-292
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 33020282
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
- Descriptors DEI
- ANIONS; CHEMICAL REACTION KINETICS; DISTRIBUTION FUNCTIONS; EXTRACTION COLUMNS; FORMIC ACID; INTERMEDIATE-LEVEL RADIOACTIVE WASTES; MATERIALS RECOVERY; ORGANIC ION EXCHANGERS; PALLADIUM; PH VALUE
- Descriptors DEC
- CARBOXYLIC ACIDS; CHARGED PARTICLES; ELEMENTS; EQUIPMENT; EXTRACTION APPARATUSES; FUNCTIONS; ION EXCHANGE MATERIALS; IONS; KINETICS; MANAGEMENT; MATERIALS; METALS; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; PLATINUM METALS; PROCESSING; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; REACTION KINETICS; SEPARATION EQUIPMENT; TRANSITION ELEMENTS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES
Optional Information
- Notes
- 12 refs.