Method for purifying bidentate organophosphorous compounds

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:863920

McIsaac, Lyle D.; Krupa, Joseph F.; Schroeder, Norman C.

Bidentate organophosphorous compounds are purified of undesirable impurities by contacting a solution of the compounds with a mercuric nitrate solution to form an insoluble mercuric bidentate compound which precipitates while the impurities remain in solution. The precipitate is washed and then contacted with a mixture of an aqueous solution of a strong mercuric ion complexing agent and an organic solvent to complex the mercuric ion away from the bidentate compound which then dissolves in the solvent. The purified bidentate compounds are useful for extracting the actinide elements from aqueous acidic nuclear waste solutions.

• Research Organization: Allied Chemical Corp., Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-76ID01540
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): 4,276,235
• Application Number: 06/143381
• OSTI ID: 863920
• Resource Relation: Patent File Date: 1980 Apr 24
• Country of Publication: United States
• Language: English

Related Subjects

method
purifying
bidentate
organophosphorous
compounds
purified
undesirable
impurities
contacting
solution
mercuric
nitrate
form
insoluble
compound
precipitates
remain
precipitate
washed
contacted
mixture
aqueous
strong
complexing
agent
organic
solvent
complex
dissolves
useful
extracting
actinide
elements
acidic
nuclear
waste
solutions
nitrate solution
aqueous acid
aqueous acidic
organic solvent
aqueous solution
waste solutions
nuclear waste
complexing agent
waste solution
bidentate organophosphorous
acidic nuclear
mercuric nitrate
actinide elements
purifying bidentate
organophosphorous compounds
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