Compositions – Organic luminescent material containing compositions – Scintillating or lasing compositions
Patent
1973-09-10
1977-02-15
Padgett, Benjamin R.
Compositions
Organic luminescent material containing compositions
Scintillating or lasing compositions
G21F 930
Patent
active
040081710
ABSTRACT:
A process for reducing the volume of spent radioactive ion exchange resins which have been used for conditioning water circulated through a nuclear reactor. The spent resins are discharged from the reactor system as radioactive wastes to a spent resin storage tank in the form of a slurry. The slurry is first vacuum dewatered to remove the free water and then the intrinsic water in the wet resin beads is removed by drying in a vacuum fluidized bed chamber utilizing superheated steam which also acts to fluidize the bed. Further drying is accomplished by spraying the partially dried resin and superheated steam through a steam injected two-fluid nozzle for further extraction of intrinsic water from the resins. The steam is discharged to a condenser and the dried resins to an evacuated disposal drum. Approximate 4:1 volume reductions from the resin-water slurry to the dried resin is obtainable by practicing the process.
REFERENCES:
patent: 2855371 (1958-10-01), Abrams
patent: 3479295 (1969-11-01), Thompson
patent: 3791981 (1974-02-01), Calmon
"Drying" Kirk-Othmer Encyclopedia of Chemical Tech. Interscience Publishers, New York, 1965, vol. 7, pp. 332-334ff.
Grover Donald L.
Kitzes Arnold S.
Lee Pang K.
Tiepel Erich W.
Campbell J. R.
Dermer Z. L.
Kyle Deborah L.
Padgett Benjamin R.
Westinghouse Electric Corporation
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