Method for purifying bidentate organophosphorous compounds

Patent · Wed Dec 31 23:00:00 EST 1980

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
• Country of Publication: United States
• Language: English

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