Separation of actinides from lanthanides

Patent · Wed Mar 30 23:00:00 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 Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy
• Patent Number(s): PATENTS-US-A7176131
• Application Number: ON: DE89010102
• OSTI ID: 6432875
• Country of Publication: United States
• Language: English

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400105 -- Separation Procedures
ACTINIDES
AQUEOUS SOLUTIONS
DISPERSIONS
ELEMENTS
EXTRACTION
INVENTIONS
LIGANDS
METALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHINE OXIDES
PHOSPHINES
PHOSPHONATES
PHOSPHORUS COMPOUNDS
RARE EARTHS
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SOLVENT PROPERTIES