Published March 6, 1998 | Version v1
Patent Metadata-only

Solidification method for radioactive iodine containing-waste

Creators

Description

Upon solidification of adsorbent which adsorbed and collected radioactive iodine, especially, iodine-containing wastes containing long half life I-129 generated in spent nuclear fuel reprocessing plants, granular radioactive iodine-containing wastes and metal powders which are corrosion resistant under processing circumstances of solids are mixed, and then the mixture is filled in a metal capsule, and they are wholly subjected to a hot hydrostatic pressure (HIP) treatment to form solid materials. In the present invention, the mixture comprising metal powders which are corrosion resistant under circumstances of processing solids, for example, in a deep stratum and radioactive iodine-containing wastes are processed. Accordingly, since materials to be processed free from water are subjected to the HIP process, dense solids can be obtained. (T.M.)

Availability note (English)

Available from JAPIO. Also available from EPO.

Additional details

Publishing Information

Imprint Pagination
5 p.
IPC:
Int. Cl. G21F9/36; G21F9/02
IPC
Int. Cl. G21F9/36; G21F9/02
Patent number
JP patent document 10-62598/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
29043507
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CAPSULES; CONTAINMENT; CORROSION RESISTANCE; HALF-LIFE; HOT PRESSING; IODINE 129; MECHANICAL PROPERTIES; RADIOACTIVE WASTES; REPROCESSING; SOLIDIFICATION; SPENT FUELS
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CONTAINERS; ENERGY SOURCES; FABRICATION; FUELS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IODINE ISOTOPES; ISOTOPES; MATERIALS; MATERIALS WORKING; NUCLEAR FUELS; NUCLEI; ODD-EVEN NUCLEI; PRESSING; RADIOACTIVE MATERIALS; RADIOISOTOPES; REACTOR MATERIALS; SEPARATION PROCESSES; WASTES; YEARS LIVING RADIOISOTOPES

Optional Information

Secondary number(s)
JP patent application 8-218379