Published March 17, 1989 | Version v1
Patent Metadata-only

Method of decladding spent nuclear fuel

Creators

Description

Hydrogen is adsorbed into a fuel can made of zircaloy alloy to convert the fuel can into zirconium hydride thereby embrittling it. Then, the fuel can is destroyed by flexing into broken pieces of predetermined length. Vibrations or impact shocks are applied to the broken piece to discharge fuels in the inside into a fuel containing vessel. According to the present invention, no large cutting device is required and no shreding dusts are formed. Accordingly, the processing cost can be reduced. (S.T.)

Availability note (English)

Available from JAPIO. Also available from INPADOC.

Additional details

Publishing Information

Imprint Pagination
3 p.
IPC:
Int. Cl. G21C19/34.
IPC
Int. Cl. G21C19/34.
Patent number
JP patent document 64-73298/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
20075119
Subject category
S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
FUEL CANS; HYDROGEN; HYDROGENATION; MECHANICAL DECLADDING; REPROCESSING; SPENT FUEL ELEMENTS; SPENT FUELS; ZIRCALOY; ZIRCONIUM HYDRIDES
Descriptors DEC
ALLOYS; CHEMICAL REACTIONS; DECLADDING; ELEMENTS; ENERGY SOURCES; FUEL ELEMENTS; FUELS; HEAD END PROCESSES; HYDRIDES; HYDROGEN COMPOUNDS; MATERIALS; NONMETALS; NUCLEAR FUELS; REACTOR COMPONENTS; REACTOR MATERIALS; SEPARATION PROCESSES; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM ALLOYS; ZIRCONIUM BASE ALLOYS; ZIRCONIUM COMPOUNDS

Optional Information

Secondary number(s)
JP patent application 62-230404.