Recovery of germanium-68 from irradiated targets

Patent · Fri Jan 01 04:00:00 EST 1993

OSTI ID:868682

Phillips, Dennis R ^[1]; Hamilton, Virginia T ^[1]

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1. Los Alamos, NM

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5190735
• OSTI ID: 868682
• Country of Publication: United States
• Language: English

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/423/210/376/
adapted
adjusting
adsorbed
arsenic
beryllium
cationic
cationic resin
chromium
cobalt
concentration
consisting
contacting
containing solution
dextran-based
dextran-based material
dissolving
distillation
form
germanium
germanium-68
halide
halide-containing
hydrogen
hydrogen peroxide
ion-containing
ion-containing solution
iron
irradiated
irradiated molybdenum
irradiated target
irradiated targets
level
manganese
material
material whereby
metal
metal halide
molybdenum
molybdenum target
molybdenum targets
niobium
oxide solution
peroxide
peroxide solution
ph
ph-adjusted
preferably
process
proton
proton irradiated
provided
range
recovering
recovery
remain
resin
resin whereby
rubidium
rubidium remain
selected
selective
selective separation
selectively
selectively adsorbed
selenium
separated
separation
soluble
soluble metal
solution
strontium
subsequent
subsequent separation
target
targets
technetium
vanadium
whereby
yttrium
zinc
zirconium