METHOD OF SEPARATING STRONTIUM-89 FROM YTTRIUM Russian patent published in 2007 - IPC C01F11/00 G21G4/08 

FIELD: radionuclide separation.

SUBSTANCE: invention aiming at obtaining pure radionuclide strontium-89 proposes a method to separate the latter from yttrium, which method comprises precipitation of strontium-89 with carrier, namely yttrium-alkali metal double sulfates obtained by adding alkali metal sulfates to solution in quantities not less than 0.1 mole/L, followed by addition of ethanol to end concentration at least 50% by volume. Resulting precipitate is separated from mother liquor and washed.

EFFECT: reduced degree of strontium-89 recovery and reduced percentage of yttrium impurities in the separated product.

3 cl, 2 dwg, 2 ex