Method for the decontamination of metallic surfaces

Patent · Wed Jan 01 00:00:00 EST 2003

OSTI ID:874980

Purohit, Ankur ^[1]; Kaminski, Michael D ^[2]; Nunez, Luis ^[3]

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1. Darien, IL
2. Lockport, IL
3. Elmhurst, IL

A method of decontaminating a radioactively contaminated oxide on a surface. The radioactively contaminated oxide is contacted with a diphosphonic acid solution for a time sufficient to dissolve the oxide and subsequently produce a precipitate containing most of the radioactive values. Thereafter, the diphosphonic solution is separated from the precipitate. HEDPA is the preferred diphosphonic acid and oxidizing and reducing agents are used to initiate precipitation. SFS is the preferred reducing agent.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: The University of Chicago (Chicago, IL)
• Patent Number(s): US 6504077
• OSTI ID: 874980
• Country of Publication: United States
• Language: English

Related Subjects

method
decontamination
metallic
surfaces
decontaminating
radioactively
contaminated
oxide
surface
contacted
diphosphonic
acid
solution
time
sufficient
dissolve
subsequently
produce
precipitate
containing
radioactive
values
thereafter
separated
hedpa
oxidizing
reducing
agents
initiate
precipitation
sfs
agent
reducing agent
acid solution
phosphonic acid
diphosphonic acid
radioactively contaminated
metallic surface
/588/423/