FIELD: immobilization of radioactive wastes.
SUBSTANCE: proposed silicate matrix for conditioning radioactive wastes has SiO2, Na2O, K2O, CaO, Fe2O3, Cr2O3, NiO, Al2O3, ZrO2, oxides of radioactive waste components including nuclear fuel fission products, U, transuranium elements. Proportion of mentioned components used in matrix is as follows, mole percent: SiO2, 60-68; sum of Na2O, K2O, Cs2O, 11-18; sum of CaO, SrO, BaO, 3-6; sum of Fe2O3, Cr2O3, NiO, 2-4; Al2O3, 1-3; ZrO2, 4-7; sum of rare-earth elements, U, and transuranium elements, 1.5; the rest, 3.
EFFECT: enhanced chemical and thermal stability of matrix.
1 cl, 3 dwg, 3 tbl, 8 ex
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