Method for purifying bidentate organophosphorous compounds

Patent · Wed Apr 23 23:00:00 EST 1980

OSTI ID:6606471

McIsaac, L D; Krupa, J F; Schroeder, N 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.

• DOE Contract Number: AC07-76ID01540
• Assignee: Dept. of Energy
• Patent Number(s): None
• OSTI ID: 6606471
• Country of Publication: United States
• Language: English

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ACTINIDES
ALKALI METAL COMPOUNDS
ALKANES
AQUEOUS SOLUTIONS
AROMATICS
BENZENE
CARBON COMPOUNDS
CARBONATES
CHEMICAL REACTIONS
COMPLEXES
CYANIDES
DHDECMP
DISPERSIONS
ELEMENTS
ESTERS
EXTRACTION
HEXANE
HYDROCARBONS
IMPURITIES
MEDIUM TEMPERATURE
MERCURY COMPLEXES
MERCURY COMPOUNDS
MERCURY NITRATES
METALS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHONIC ACID ESTERS
PHOSPHORIC ACID ESTERS
POTASSIUM COMPOUNDS
PRECIPITATION
PURIFICATION
SEPARATION PROCESSES
SODIUM CARBONATES
SODIUM COMPOUNDS
SOLUTIONS
SOLVENT EXTRACTION