Method for extracting lanthanides and actinides from acid solutions by modification of Purex solvent

Patent · Mon May 21 04:00:00 EDT 1984

OSTI ID:6034988

Horwitz, E P; Kalina, D G

A process has been developed for the extraction of multivalent lanthanide and actinide values from acidic waste solutions, and for the separation of these values from fission product and other values, which utilizes a new series of neutral bi-functional extractants, the alkyl(phenyl)-N, N-dialkylcarbamoylmethylphosphine oxides, in combination with a phase modifier to form an extraction solution. The addition of the extractant to the Purex process extractant, tri-n-butylphosphate in normal paraffin hydrocarbon diluent, will permit the extraction of multivalent lanthanide and actinide values from 0.1 to 12.0 molar acid solutions.

• DOE Contract Number: W-31109-ENG-38
• Assignee: Dept. of Energy
• Patent Number(s): None
• Application Number: ON: TI85005763
• OSTI ID: 6034988
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTINIDES
BUTYL PHOSPHATES
ELEMENTS
ESTERS
EXTRACTION
HIGH-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
METALS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PHOSPHORIC ACID ESTERS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RARE EARTHS
SEPARATION PROCESSES
SOLVENT EXTRACTION
TBP
WASTE MANAGEMENT
WASTE PROCESSING
WASTES