Published 1986 | Version v1
Book Metadata-only

Immobilization of uranium-rich high-level nuclear waste

Creators

  • 1. Whiteshell Nuclear Research Establishment, Pinawa, Manitoba (Canada)

Description

The immobilization of used UO/sub 2/ fuel recycle waste having a high concentration of uranium has been addressed by studying devitrified titanosilicate (Na/sub 2/O-Al/sub 2/O/sub 3/-CaO-TiO/sub 2/-SiO/sub 2/-UO/sub 2+x/) glasses and some boro- and aluminosilicate glasses containing UO/sub 2+x/. The devitrified titanosilicate glasses contained the crystalline phases CaUTi/sub 2/O/sub 7/ and brannerite (UTI/sub 2/O/sub .6/), and were more durable than the boro- and aluminosilicate glasses, especially when the titanosilicates were prepared by sol-gel techniques. Silicon leach rates after 90 days at 900C in deionized water were ∼2 x 10/sup -9/ kg/(m/sup 2/.s), with the glassy phase leaching more rapidly than the crystalline CaUTi/sub 2/O/sub 7/ or brannerite phases

Additional details

Publishing Information

Publisher
American Ceramic Society Inc.
Imprint Place
Westerville, OK (USA)
ISBN
0-916094-82-0
Imprint Title
Nuclear waste management II
Journal Page Range
p. 249-258.

Conference

Title
3. international symposium on ceramics in nuclear waste management.
Dates
28-30 Aug 1986.
Place
Chicago, IL (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20057638
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALUMINIUM SILICATES; BOROSILICATE GLASS; CALCIUM OXIDES; CHEMICAL COMPOSITION; CHEMICAL PREPARATION; GLASS; GROUND WATER; HIGH-LEVEL RADIOACTIVE WASTES; LEACHING; RADIOACTIVE WASTE DISPOSAL; RADIOACTIVE WASTE PROCESSING; SILICON; SOL-GEL PROCESS; TITANIUM OXIDES; TITANIUM SILICATES; UNDERGROUND DISPOSAL; URANIUM DIOXIDE; URANIUM OXIDES; VITRIFICATION; WASTE FORMS
Descriptors DEC
ACTINIDE COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; DISSOLUTION; ELEMENTS; HYDROGEN COMPOUNDS; MANAGEMENT; MATERIALS; OXIDES; OXYGEN COMPOUNDS; POLAR SOLVENTS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; SEMIMETALS; SEPARATION PROCESSES; SILICATES; SILICON COMPOUNDS; SOLVENTS; SYNTHESIS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; URANIUM COMPOUNDS; WASTE DISPOSAL; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; WATER