METHOD FOR SEPARATING PRODUCT RADIOACTIVE NUCLIDE FROM PARENT ONE Russian patent published in 1997 - IPC

Abstract RU 2084980 C1

FIELD: production of radioactive nuclide of tellurium-125 M from liquid radioactive wastes containing antimony-125; manufacture of tellurium-125 M generators. SUBSTANCE: method involves passing antimony-125 containing aqueous nitric acid solution through inorganic sorbent (antimony oxides or hydroxides). Sorbent with adsorbed antimony-125 is subjected to heat treatment, primarily at 700-800 C for 1-2 h. Then tellurium-125 M radioactive nuclide is extracted by aqueous solution of KOH, NaOH concentration of 0.05-0.1 M or NH₄OH concentration of 1-8 M. EFFECT: improved service life of tellurium-125 M generator due to use of chemically neutral agents. 3 cl

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RU 2 084 980 C1

Authors

Baluev A.V.

Mitjakhina V.S.

Puzhikin D.Ju.

Dates

1997-07-20—Published

1994-04-28—Filed