Separation of actinides from lanthanides

Patent · Thu Mar 31 00:00:00 EST 1988

OSTI ID:6432875

Smith, B. F.; Jarvinen, G. D.; Ryan, R. R.

An organic extracting solution and an extraction method useful for separating elements of the actinide series of the periodic table from elements of the lanthanide series, where both are in trivalent form is described. The extracting solution consists of a primary ligand and a secondary ligand, preferably in an organic solvent. The primary ligand is a substituted monothio-1,3-dicarbonyl, which includes a substituted 4-acyl-2-pyrazolin-5-thione, such as 4-benzoyl-2,4- dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione (BMPPT). The secondary ligand is a substituted phosphine oxide, such as trioctylphosphine oxide (TOPO).

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy
• Patent Number(s): PATENTS-US-A7176131
• Application Number: ON: DE89010102
• OSTI ID: 6432875
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACTINIDES
SOLVENT EXTRACTION
ORGANIC SULFUR COMPOUNDS
SOLVENT PROPERTIES
PHOSPHINE OXIDES
PHOSPHONATES
RARE EARTHS
AQUEOUS SOLUTIONS
INVENTIONS
LIGANDS
SEPARATION PROCESSES
DISPERSIONS
ELEMENTS
EXTRACTION
METALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
SOLUTIONS
050800* - Nuclear Fuels- Spent Fuels Reprocessing
400105 - Separation Procedures