Method for purifying bidentate organophosphorous compounds

Patent · Tue Jun 30 00:00:00 EDT 1981

OSTI ID:6022571

Krupa, J F; Mcisaac, L D; 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.

• Assignee: Department of Energy
• Patent Number(s): US 4276235
• Application Number: TRN: 82-000731
• OSTI ID: 6022571
• Resource Relation: Patent File Date: Filed date 24 Apr 1980; Other Information: PAT-APPL-143381
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ORGANIC PHOSPHORUS COMPOUNDS
MATERIALS RECOVERY
PURIFICATION
ACTINIDES
AQUEOUS SOLUTIONS
IMPURITIES
MERCURY COMPLEXES
MERCURY COMPOUNDS
MERCURY IONS
MERCURY NITRATES
ORGANIC SOLVENTS
POTASSIUM COMPOUNDS
PRECIPITATION
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
ALKALI METAL COMPOUNDS
CHARGED PARTICLES
COMPLEXES
DISPERSIONS
ELEMENTS
IONS
MANAGEMENT
MATERIALS
METALS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
RADIOACTIVE MATERIALS
RECOVERY
SEPARATION PROCESSES
SOLUTIONS
SOLVENTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
400105* - Separation Procedures
052001 - Nuclear Fuels- Waste Processing