Compositions – Radioactive compositions
Patent
1991-08-14
1993-09-07
Hunt, Brooks H.
Compositions
Radioactive compositions
210682, 210688, 210679, 423 2, 423157, 4231795, 423181, C21F 916
Patent
active
H00012270
ABSTRACT:
The invention is a method for the encapsulation of soluble radioactive waste chloride salts containing radionuclides such as strontium, cesium and hazardous wastes such as barium so that they may be permanently stored without future threat to the environment. The process consists of contacting the salts containing the radionuclides and hazardous wastes with certain zeolites which have been found to ion exchange with the radionuclides and to occlude the chloride salts so that the resulting product is leach resistant.
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patent: 4800042 (1989-01-01), Kurumada et al.
Liquornik et al., "ion Exchange in Molten Salts VI", J. Physical Chemistry, ol. 77, No. 11, 1973, pp. 1398-1400.
Platek & Marinsky, "Ion Exchange in Concentrated Electrolyty Solutions, etc.", vol. 65, pp. 2118-2122.
A. Baten, "Thermal Analysis of Compounds Resulting from the Inclusion of Molten Salts in Intracrystalline Channels of the Synthetic, etc." Ser. Chem. Metal., 40(4), pp. 77-81.
J. E. Battles et al., IFR Pyrochemical Processes Semiannual Report, Apr.-Sep. 1989, ANL-IFR-129, pp. 39, 41.
J. E. Battles et al., IFR Pryochemical Processes Semiannual Report, Oct. 1989-Mar. 1990, ANL-IFR-137, pp. 43-44.
J. E. Battles et al., IFR Pyrochemical Processes Semiannual Report, Apr.-Sep. 1990, ANL-IFR-146, pp. 64-69.
Liquornik et al., "Ion Exchange in Molten Salts . . . III: The Ion-Exchange, etc.", Journal of Phys. Chem., vol. 72, 1968, pp. 4704 to 4705.
Marinsky, "Ion Exchange", Marcel Dekker, Inc. 1969, vol. 2, pp. 44.
Clarke, "Ceramic Materials for the Immobilization of Nuclear Waste", Ann. Rev. Mater. Sci., 1983, 13:191-218.
Johnson Terry R.
Lewis Michele A.
Fisher Robert J.
Hunt Brooks H.
Mai Ngoclan T.
Moser William R.
The United States of America as represented by the Department of
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