Published April 9, 1993 | Version v1
Patent Metadata-only

Production process for powdery uranium-containing compound

Creators

Description

A starting material as an object of heat treatment is urania/gadolinia oxide (U, Gd)O2 which include molding products of oxides represented by UO2 or (U, Gd)O2 (for example, pellets or lumps are contained). The molded dioxides are applied with heat treatment in a CO2 containing gas in a state as they are or in a state pulverized or classified to some extent, by which UO2 or (U, Gd)O2 is oxidized to form powdery U3O8 or (U, Gd)3O8. In addition, powderization is extremely promoted by conducting the treatment in a CO2 gas-containing atmosphere, to provide satisfactory powderization. (T.M.)

Availability note (English)

Available from JAPIO. Also available from INPADOC.

Additional details

Publishing Information

Imprint Pagination
4 p.
IPC:
Int. Cl. G21C3/62; G21C21/02.
IPC
Int. Cl. G21C3/62; G21C21/02.
Patent number
JP patent document 5-87965/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
24075190
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
AIR; ATMOSPHERES; CARBON DIOXIDE; CRUSHING; FUEL PELLETS; GADOLINIUM OXIDES; HEAT TREATMENTS; MIXTURES; OXIDATION; POWDERS; URANIUM OXIDES U3O8
Descriptors DEC
ACTINIDE COMPOUNDS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; DISPERSIONS; FLUIDS; FRAGMENTATION; GADOLINIUM COMPOUNDS; GASES; MECHANICAL FRAGMENTATION; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; URANIUM COMPOUNDS; URANIUM OXIDES

Optional Information

Secondary number(s)
JP patent application 3-251285.