EP 0306420 B1 19911127 - PROCESS FOR THE PURIFICATION OF TRACES OF RADIOACTIVE ELEMENTS GENERATED DURING THE STOCKPILING OF URANIUM RESULTING FROM THE PROCESSING OF IRRADIATED NUCLEAR FUELS
Title (en)
PROCESS FOR THE PURIFICATION OF TRACES OF RADIOACTIVE ELEMENTS GENERATED DURING THE STOCKPILING OF URANIUM RESULTING FROM THE PROCESSING OF IRRADIATED NUCLEAR FUELS
Publication
Application
Priority
FR 8712705 A 19870901
Abstract (en)
[origin: JPH01138495A] PURPOSE: To operate and use retreated uranium under normal conditions and to store it again by passing it through a chemically inactive porous substance in liquid-shaped or gas-shaped hexasulfide form. CONSTITUTION: Reprocessed uranium is passed through a chemically inactive porous substance in liquid-shaped or gas-shaped hexasulfide form, where the porous substance should be formed, for example, by nets that are piled up each other and be stainless, nickel, and their alloy. Also, the diameter of the porous substance should be less than 100μm, preferably 50μm. Further, the passage speed of the liquid-shaped or gas-shaped hexasulfide should be 15-100m/ hour and the contact time with the porous substance should be 0.1-10sec.
IPC 1-7
IPC 8 full level
B01D 53/02 (2006.01); G21F 9/00 (2006.01); G21F 9/02 (2006.01); G21F 9/06 (2006.01)
CPC (source: EP US)
G21F 9/02 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE GB
DOCDB simple family (publication)
EP 0306420 A1 19890308; EP 0306420 B1 19911127; DE 3866477 D1 19920109; FR 2619952 A1 19890303; FR 2619952 B1 19891117; JP H01138495 A 19890531; JP H0574038 B2 19931015; US 4891192 A 19900102
DOCDB simple family (application)
EP 88420294 A 19880831; DE 3866477 T 19880831; FR 8712705 A 19870901; JP 21472988 A 19880829; US 23690788 A 19880826