PILOT PLANT STUDIES WITH A SIX-INCH DIAMETER FLUIDIZED BED CALCINER

Technical Report · Thu Apr 20 04:00:00 EST 1961

DOI:https://doi.org/10.2172/4003216· OSTI ID:4003216

Evans, D R

The feasibility of the fiuidized bed calcination process was demonstrated at the Idaho Chemical Processing Plant. Sloutions simulating wates from the reprocessing of spent aluminum alloy, stainless steel and zirconium fuels were converted to free-flowing granular solids in a six-inch diameter fluidized bed calciner. The calciner was electrically heated, and a pneumatic atomizing spray nozzle was used to introduce liquid feed into the heated fluidized bed, where calcination took place. Removal of entrained particles from the off gas was achieved through the use of a cyclone and a venturi scrubber, although the cleaning achieved would not be adequate for calcining a rsdioactive waste. Dry fines removed by the cyclone were returned to the bed with the fluidizing air through an air jet on the dust dischange line of the cyclone. The effects on the calcined product properties and on off gas solids loading of the degree of feed atomization, of bed temperature, and of returning dry fines to the calciner were noted while calcining simulated wastes from aluminum alloy fuels. The distribution of ruthenium and the effect of ammonium ion were determined, and a slurry of a cesium complex with nickel ferrocyanide was dried on sand, then leached, as a method of cesium recovery. (auth)

• Research Organization: Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• DOE Contract Number: AT(10-1)-205
• NSA Number: NSA-15-019453
• OSTI ID: 4003216
• Report Number(s): IDO-14539
• Country of Publication: United States
• Language: English

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CHEMISTRY