METHOD FOR IMMOBILIZING TRANSPLUTONIUM AND RARE-EARTH ELEMENT FRACTIONS IN SYNTHETIC MONAZITE

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FIELD : immobilization of radioactive wastes.SUBSTANCE : proposed method includes precipitation of tribasic phosphates of transplutonium and rare-earth elements from nitric acid solution, their dehydration and compacting. During precipitation stage aqueous polyacrylamide solution is added in the amount of minimum 1 mass percent of tribasic phosphates, and molding powder is produced in thin-film rotary concentrator.EFFECT : enhanced reliability of radioactive waste immobilization.1 cl, 1 tbl, 3 ex