Immobilization of high-level wastes in stable mineral-like materials in a self-propagating high-temperature synthesis regime

The minerals which are most resistant to natural corrosive media and possess perovskite, zirconolite, fergusonite, and Y-Al garnet type structures are selected on the basis of an analysis of the mineralogical data. The minerals contain elements that are isomorphic to radionuclides appearing in high-...

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Bibliographic Details
Published in:Atomic energy (New York, N.Y.) N.Y.), 1999-07, Vol.87 (1), p.514-518
Main Authors: GLAGOVSKII, E. M, KUPRIN, A. V, PELEVIN, L. P, KONOVALOV, E. E, STARKOV, O. V, LEVAKOV, E. V, POSTNIKOV, A. Yu, LISITSA, F. D
Format: Article
Language:English
Subjects:
High temperature
Minerals
Nuclear physics
Studies
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Summary:The minerals which are most resistant to natural corrosive media and possess perovskite, zirconolite, fergusonite, and Y-Al garnet type structures are selected on the basis of an analysis of the mineralogical data. The minerals contain elements that are isomorphic to radionuclides appearing in high-level wastes. Synthesis of the analogs of calcinites, using metallothermal processes in a self-propagating high-temperature synthesis regime, was investigated on model systems in application to the immobilization of calcinates of high-level wastes. Compaction of the analogs of perovskite and zirconolite was investigated most completely, and the effect of various formulations and technological parameters on the process is studied. 3 figures, 2 tables, 6 references.[PUBLICATION ABSTRACT]
ISSN:1063-4258
1573-8205
DOI:10.1007/bf02673211