Development of a fluidized bed calcination process for aluminum nitrate wastes in a two-foot-square pilot plant calciner. Part I. Equipment development and initial process studies
A two-foot-square fluidized bed calciner was designed and operated to convert aqueous, highly radioactive wastes into granular solids. The calciner exceeded its designed feed capacity of calcining, at a bed temperature of 400/sup 0/C, 100 liters per hour of aluminum nitrate solution simulating wastes from the reprocessing of spent aluminum-uranium alloy reactor fuel. Heat was supplied to the calciner by circulating NaK with an electromagnetic pump, at temperatures up to 1400/sup 0/F, through a tubular heat exchanger placed directly in the fluidized bed of solids. The results of ten runs are presented and discussed. Equipment development progressed to the point where a continuous, trouble-free, operating period of 43 days was attained. Several properties of the alumina product were routinely measured, and some of the effects of the calciner operating variables on these properties were determined. The production of both amorphous and alpha crystalline material was found to be possible; the crystalline nature of the product had a profound effect on product properties and off-gas loading.
- Research Organization:
- Phillips Petroleum Co., Idaho Falls, ID (USA). Atomic Energy Div.
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- AT(10-1)-205
- OSTI ID:
- 5827308
- Report Number(s):
- IDO-14586
- Country of Publication:
- United States
- Language:
- English
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DEVELOPMENT OF A FLUIDIZED BED CALCINATION PROCESS FOR ALUMINUM NITRATE WASTES IN A TWO-FOOT-SQUARE PLANT CALCINER. PART II. FACTORS AFFECTING THE INTRA-PARTICLE POROSITY OF ALUMINA
Development of the fluidized bed waste calcination process
Related Subjects
RADIOACTIVE WASTE PROCESSING
CALCINATION
HIGH-LEVEL RADIOACTIVE WASTES
PILOT PLANTS
ALUMINIUM NITRATES
ALUMINIUM OXIDES
DESIGN
ELECTROMAGNETIC PUMPS
EQUIPMENT
FLUIDIZED BED
HIGH TEMPERATURE
SOLIDIFICATION
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
FUNCTIONAL MODELS
MANAGEMENT
MATERIALS
NITRATES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PROCESSING
PUMPS
PYROLYSIS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052001* - Nuclear Fuels- Waste Processing