Actinide partitioning by means of the TRPO process
The highly active waste (HAW) from the PUREX process contains significant amounts of actinides along with the fission products. An extraction process has recently been developed which uses a trialkyl (C6-C8) phosphine oxide (TRPO). Two experiments were carried out to determine the distribution coefficients of the actinides as a function of nitric acid concentration and to investigate the radiation stability of TRPO under real conditions. Both experiments were conducted using HAW from reprocessing of commercial spent fuel. The TRPO showed excellent extraction abilities for the actinides and some fission products. Results indicate a high radiation stability of TRPO to all types of radiation emitted by the HAW constituents.
Bibliographic Reference: Paper presented: RECOD '94 - 4th International Conference on Nuclear Fuel Reprocessing and Waste Management, London (GB), April 24-28, 1994
Availability: Available from (1) as Paper EN 38126 ORA
Record Number: 199410299 / Last updated on: 1994-11-28
Original language: en
Available languages: en