SYNROC powder preparation: preliminary fluid bed tests in a cold-flow unit

Technical Report · Thu Oct 28 04:00:00 EDT 1982

DOI:https://doi.org/10.2172/6661374· OSTI ID:6661374

Peters, P E; Ackerman, F J; Grens, J Z

SYNROC is a titanate-based material which is being developed as a medium for immobilizing high-level nuclear waste. The use of a fluid bed unit for production of SYNROC powder has a precedent in the use of a fluid-bed calciner for high-level waste processing at the Idaho Chemical Processing Plant (Idaho Falls, ID). In order to facilitate the design of a fluid bed and demonstrate its use for SYNROC production, two small units have been constructed, one for low temperature use and a second for actual SYNROC production at temperatures up to 800/sup 0/C. The low-temperature unit is constructed with glass walls to allow observation of the fluidization process, including the onset of fluidization, bed and gas bubble behavior and mixing phenomena. Disturbances caused by side streams entering the bed have been examined. Side streams may represent fuel and oxidizer admission or slurry feed with subsequent flash vaporization of the carrier liquid. This report is a summary of the initial tests made with the low-temperature, glass-walled fluid bed. The tests described include: (1) the measurement of basic fluidization parameters; (2) measurement of the effect of distribution-plate design on bed fluidization; (3) observation of jet penetration, bubble formation and coalescence, and surface behavior; and (4) studies of mixing within the bed. (DMC)

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6661374
• Report Number(s): UCID-19598; ON: DE83003150
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
CALCINATION
CHEMICAL REACTIONS
DECOMPOSITION
FLUIDIZATION
FLUIDIZED BED REACTORS
FUEL DISPERSION REACTORS
HIGH-LEVEL RADIOACTIVE WASTES
HOMOGENEOUS REACTORS
KINETICS
MANAGEMENT
MATERIALS
PERFORMANCE TESTING
PHASE TRANSFORMATIONS
PROCESSING
PRODUCTION
PYROLYSIS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REACTORS
ROCKS
SOLIDIFICATION
SYNTHETIC MATERIALS
SYNTHETIC ROCKS
TESTING
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES