Immobilization of sodium in SYNROC

Journal Article · Thu Jan 01 00:00:00 EST 1981 · Nucl. Chem. Waste Manage.; (United States)

DOI:https://doi.org/10.1016/0191-815X(81)90008-5· OSTI ID:6209380

Kesson, S E; Ringwood, A E

SYNROC formulations developed for the immobilization of high-level wastes from the civilian power program can be modified to accommodate abnormally high sodium levels in the wastes. The addition of niobium or light rare earth oxides to the inert additives in the SYNROC process results in a wasteform where sodium is immoblized in the perovskite phase (CaTiO/sub 3/) as either NaNbO/sub 3/ or Na/sub 0.5/ (REE)/sub 0.5/ TiO/sub 3/ components in solid solution. The latter alternative offers better cost benefits. 4 tables.

• Research Organization: Australian National Univ., Canberra, Australia
• OSTI ID: 6209380
• Journal Information: Nucl. Chem. Waste Manage.; (United States), Vol. 2:1
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
RADIOACTIVE WASTE PROCESSING
HIGH-LEVEL RADIOACTIVE WASTES
SOLIDIFICATION
SYNROC PROCESS
ADDITIVES
NIOBIUM
PEROVSKITES
RARE EARTH COMPOUNDS
SODIUM COMPOUNDS
ALKALI METAL COMPOUNDS
ELEMENTS
MANAGEMENT
MATERIALS
METALS
MINERALS
PHASE TRANSFORMATIONS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REFRACTORY METALS
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052001* - Nuclear Fuels- Waste Processing