EP 0033091 A1 19810805 - Process for purifying a nitric-acid U/Pu solution.
Title (en)
Process for purifying a nitric-acid U/Pu solution.
Title (de)
Verfahren zur Reinigung einer salpetersauren U/Pu-Lösung.
Title (fr)
Procédé de purification d'une solution d'uranium/plutonium contenant de l'acide nitrique.
Publication
Application
Priority
DE 3003088 A 19800129
Abstract (en)
[origin: US4431580A] Purifying a nitric acid solution containing U/Pu ions and contaminated by metal impurities by (a) oxidizing the U/Pu ions of the solution to the hexavalent form, (b) conducting the solution after oxidation through a cation exchanger column in which the impurities, especially americium, are retained, (c) flushing the cation exchanger column to remove impurities therefrom, which may be taken to waste processing or utilization plant.
Abstract (de)
Die verunreinigte Ausgangslösung wird nach Aufoxidation der enthaltenen U/Pu-Ionen in die sechswertige Form über eine Kationenaustauschersäule geleitet. Darin werden die Verunreinigungen, speziell Americium, zurückgehaiten und durch anschließende Spülung einer an sich bekannten Abfallbehandlung bzw. -verwertung (Americium) zugeführt.
IPC 1-7
IPC 8 full level
C01G 43/00 (2006.01); B01J 39/04 (2006.01); C01G 56/00 (2006.01); C22B 60/02 (2006.01); C22B 60/04 (2006.01); G21C 19/46 (2006.01); G21F 9/00 (2006.01); G21F 9/12 (2006.01)
CPC (source: EP US)
C22B 60/0265 (2013.01 - EP US); C22B 60/04 (2013.01 - EP US); G21F 9/12 (2013.01 - EP US)
Citation (search report)
GB 801743 A 19580917 - ATOMIC ENERGY AUTHORITY UK
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0033091 A1 19810805; EP 0033091 B1 19840606; DE 3003088 A1 19810730; DE 3162623 D1 19840712; JP H0128920 B2 19890606; JP S5716396 A 19820127; US 4431580 A 19840214
DOCDB simple family (application)
EP 81100235 A 19810114; DE 3003088 A 19800129; DE 3162623 T 19810114; JP 1220881 A 19810129; US 22824781 A 19810126