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Abstract

The present paper deals with the verification of option 1 of the HDEHP process flow sheet and illustrates related experimental results. By means of M-S batteries continuous countercurrent operating conditions were thus applied to the most relevant steps of the HDEHP 1 process scheme, namely: - actinide (U, Pu, Np, Am, Cm) extraction from HAW; - trivalent actinides (Am, Cm) back-extraction from loaded HDEHP, with the aim of verifying the performances and hydraulic behaviour of these two specific process steps under dynamic conditions. For the remaining process steps (RE and Pu back-extractions, exhausted solvent clean-up) experiments were carried out batch-wise. The reduction of the HAW acidities (denitration) was successfully operated on fully active and rather large (42 litres of HAW) scale according to the experimental conditions indicated by additional exploratory experiments, performed at Ispra.

Additional information

Authors: MANNONE F, JRC ISPRA ESTAB. (ITALY);CEA, CENTRE D'ETUDES NUCLEAIRES DE FONTENAY-AUX-ROSES (FRANCE);MOEHLY G, JRC ISPRA ESTAB. (ITALY);CEA, CENTRE D'ETUDES NUCLEAIRES DE FONTENAY-AUX-ROSES (FRANCE);LECOMTE M JRC ISPRA ESTAB. (ITALY), JRC ISPRA ESTAB. (ITALY);CEA, CENTRE D'ETUDES NUCLEAIRES DE FONTENAY-AUX-ROSES (FRANCE);CEA, CENTRE D'ETUDES NUCLEAIRES DE FONTENAY-AUX-ROSES (FRANCE), JRC ISPRA ESTAB. (ITALY);CEA, CENTRE D'ETUDES NUCLEAIRES DE FONTENAY-AUX-ROSES (FRANCE)
Bibliographic Reference: FIRST INTERNATIONAL CONFERENCE ON THE CHEMISTRY AND TECHNOLOGY OF THE LANTHANIDES AND ACTINIDES, VENEZIA (ITALY), SEPT. 5-10, 1983 - WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER 31140 ORA
Availability: Can be ordered online
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