METHOD FOR IMMOBILIZING TRANSPLUTONIUM AND RARE-EARTH ELEMENT FRACTIONS IN SYNTHETIC MONAZITE Russian patent published in 2005 - IPC

Abstract RU 2244967 C2

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

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RU 2 244 967 C2

Authors

Aloj A.S.

Kol'Tsova T.I.

Samojlov S.E.

Strel'Nikov A.V.

Khoroshajlov A.G.

Skobtsov A.S.

Rovnyj S.I.

Glagolenko Ju.V.

Medvedev G.M.

Dates

2005-01-20Published

2003-03-05Filed