Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Radioactive metal
Patent
1992-03-30
1993-03-02
Walsh, Donald P.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Radioactive metal
423249, 423 215, 423 22, 423 49, 423 54, 423 63, 423 70, 423 87, 423 89, 423100, 423112, 423139, 423157, 210759, C01G 1700
Patent
active
051907356
ABSTRACT:
A process for selective separation of germanium-68 from proton irradiated molybdenum targets is provided and includes dissolving the molybdenum target in a hydrogen peroxide solution to form a first ion-containing solution, contacting the first ion-containing solution with a cationic resin whereby ions selected from the group consisting of molybdenum, niobium, technetium, selenium, vanadium, arsenic, germanium, zirconium and rubidium remain in a second ion-containing solution while ions selected from the group consisting of rubidium, zinc, beryllium, cobalt, iron, manganese, chromium, strontium, yttrium and zirconium are selectively adsorbed by the first resin, adjusting the pH of the second ion-containing solution to within a range of from about 0.7 to about 3.0, adjusting the soluble metal halide concentration in the second ion-containing solution to a level adapted for subsequent separation of germanium, contacting the pH-adjusted, soluble metal halide-containing second ion-containing solution with a dextran-based material whereby germanium ions are separated by the dextran-based material, and recovering the germanium from the dextran-based material, preferably by distillation.
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Radiochemica Acta, 28, 47-49 (1981), Mirzadeh et al. "Studies of the Chemical Behavior of Carrier-Free .sup.68 Ge".
Hamilton Virginia T.
Jamriska, Sr. David J.
Phillips Dennis R.
Cottrell Bruce H.
Gaetjens Paul D.
Mai Ngoclan T.
Moser William R.
The United States of America as represented by the United States
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