Method for immobilizing radioactive iodine

Patent · Tue Jan 01 04:00:00 EST 1980

OSTI ID:863688

Babad, Harry ^[1]; Strachan, Denis M ^[1]

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1. Richland, WA

Radioactive iodine, present as alkali metal iodides or iodates in an aqueous solution, is incorporated into an inert solid material for long-term storage by adding to the solution a stoichiometric amount with respect to the formation of a sodalite (3M.sub.2 O.3Al.sub.2 O.sub.3. 6SiO.sub.2.2MX, where M=alkali metal; X=I.sup.- or IO.sub.3.sup.-) of an alkali metal, alumina and silica, stirring the solution to form a homogeneous mixture, drying the mixture to form a powder, compacting and sintering the compacted powder at 1073 to 1373 K (800.degree. to 1100.degree. C.) for a time sufficient to form sodalite.

• Research Organization: Atlantic Richfield Hanford Co., Richland, WA (USA)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4229317
• OSTI ID: 863688
• Country of Publication: United States
• Language: English

Related Subjects

/999/423/501/976/
1073
1100
1373
2mx
3al
3m
6sio
800
adding
alkali
alkali metal
alumina
amount
aqueous
aqueous solution
compacted
compacting
degree
drying
form
formation
homogeneous
homogeneous mixture
immobilizing
immobilizing radioactive
incorporated
inert
inert solid
iodates
iodides
iodine
long-term
long-term storage
material
metal
metal iodide
method
mixture
powder
radioactive
radioactive iodine
respect
silica
sintering
sodalite
solid
solid material
solution
stirring
stoichiometric
stoichiometric amount
storage
sufficient
term storage
time
time sufficient