Process for strontium-82 separation

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868567

Heaton, Richard C ^[1]; Taylor, Wayne A ^[1]

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1. Los Alamos, NM

A process for selective separation of strontium-82 and strontium-85 from proton irradiated molybdenum targets comprises dissolving the molybdenum target in a hydrogen peroxide solution to form a first solution containing ions selected from a group consisting of molybdenum, niobium, technetium, selenium, vanadium, arsenic, germanium, zirconium, rubidium, zinc, beryllium, cobalt, iron, manganese, chromium, strontium, and yttrium; passing the solution through a first cationic resin whereby ions selected from a group consisting of zinc, beryllium, cobalt, iron, manganese, chromium, strontium, yttrium a portion of zirconium and a portion of rubidium are selectively absorbed by the first resin; contacting the first resin with an acid solution to strip and remove the absorbed ions from the first cationic exchange resin to form a second solution; evaporating the second solution for a time sufficient to remove substantially all of the acid and water from the solution whereby a residue remains; dissolving the residue in a dilute acid to form a third solution; passing the third solution through a second cationic resin whereby the ions are absorbed by the second resin; contacting the second resin with a dilute sulfuric acid solution whereby the absorbed ions selected from the group consisting of rubidium, zinc, beryllium, cobalt, iron, manganese, chromium and zirconium are selectively removed from the second resin; and contacting the second resin with a dilute acid solution whereby the absorbed strontium ions are selectively removed.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States Department of Energy (Washington, DC)
• Patent Number(s): US 5167938
• OSTI ID: 868567
• Country of Publication: United States
• Language: English

Related Subjects

process
strontium-82
separation
selective
strontium-85
proton
irradiated
molybdenum
targets
comprises
dissolving
target
hydrogen
peroxide
solution
form
containing
selected
consisting
niobium
technetium
selenium
vanadium
arsenic
germanium
zirconium
rubidium
zinc
beryllium
cobalt
iron
manganese
chromium
strontium
yttrium
passing
cationic
resin
whereby
portion
selectively
absorbed
contacting
acid
strip
remove
exchange
evaporating
time
sufficient
substantially
water
residue
remains
dilute
third
sulfuric
removed
cationic exchange
cationic resin
comprises dissolving
irradiated molybdenum
remove substantially
hydrogen peroxide
selective separation
acid solution
time sufficient
solution containing
exchange resin
sulfuric acid
dilute acid
selectively removed
resin whereby
proton irradiated
selectively absorbed
molybdenum targets
molybdenum target
peroxide solution
selectively remove
dilute sulfuric
selectively absorb
move substantially
oxide solution
targets comprise
/423/210/376/