Recovery of germanium-68 from irradiated targets
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.
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5190735; A
- Application Number:
- PPN: US 7-860617
- OSTI ID:
- 6296157
- Resource Relation:
- Patent File Date: 30 Mar 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GERMANIUM 68
ISOTOPE SEPARATION
DEXTRAN
DISSOLUTION
DISTILLATION
GERMANIUM COMPOUNDS
HALIDES
HYDROGEN PEROXIDE
ION EXCHANGE
ION EXCHANGE MATERIALS
MOLYBDENUM ISOTOPES
PH VALUE
TARGETS
BETA DECAY RADIOISOTOPES
BLOOD SUBSTITUTES
CARBOHYDRATES
DAYS LIVING RADIOISOTOPES
DRUGS
ELECTRON CAPTURE RADIOISOTOPES
EVEN-EVEN NUCLEI
GERMANIUM ISOTOPES
HALOGEN COMPOUNDS
HEMATOLOGIC AGENTS
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATERIALS
NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PEROXIDES
POLYSACCHARIDES
RADIOISOTOPES
SACCHARIDES
SEPARATION PROCESSES
400703* - Radiochemistry & Nuclear Chemistry- Radioisotope Production