Published September 13, 1996 | Version v1
Patent Metadata-only

Glass-solidification method for high level radioactive liquid waste

Creators

Description

High level liquid wastes are removed with precipitates mainly comprising Mo and Zr, thereafter, the high level liquid wastes are mixed with a glass raw material comprising a composition having a B2O3/SiO2 ratio of not less than 0.41, a ZnO/Li2O ratio of not less than 1.00, and an Al2O3/Li2O ratio of not less than 2.58, and they are melted and solidified into glass-solidification products. The liquid waste content in the glass-solidification products can be increased up to about 45% by using the glass raw material having such a predetermined composition. In addition, deposition of a yellow phase does not occur, and a leaching rate identical with that in a conventional case can be maintained. (T.M.)

Availability note (English)

Available from JAPIO. Also available from EPO.

Additional details

Publishing Information

Imprint Pagination
6 p.
IPC:
Int. Cl. G21F9/16.
IPC
Int. Cl. G21F9/16.
Patent number
JP patent document 8-233993/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
28022147
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BORON OXIDES; GLASS; LIQUID WASTES; LITHIUM OXIDES; MOLYBDENUM; RADIOACTIVE WASTE PROCESSING; SEPARATION PROCESSES; SILICON OXIDES; SOLIDIFICATION; ZINC OXIDES; ZIRCONIUM
Descriptors DEC
ALKALI METAL COMPOUNDS; BORON COMPOUNDS; CHALCOGENIDES; ELEMENTS; LITHIUM COMPOUNDS; MANAGEMENT; METALS; OXIDES; OXYGEN COMPOUNDS; SILICON COMPOUNDS; TRANSITION ELEMENTS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; ZINC COMPOUNDS

Optional Information

Secondary number(s)
JP patent application 7-40129.