Separation of actinides from lanthanides

Patent · Tue Sep 19 00:00:00 EDT 1989

OSTI ID:7268381

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

This patent describes 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. 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 include 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).

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4867951
• Application Number: PPN: US 7176131A
• OSTI ID: 7268381
• Resource Relation: Patent File Date: 31 Mar 1988
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACTINIDES
SEPARATION PROCESSES
RARE EARTHS
CHEMICAL REACTION KINETICS
LIGANDS
PHOSPHINE OXIDES
SOLVENT EXTRACTION
ELEMENTS
EXTRACTION
KINETICS
METALS
OXYGEN COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
REACTION KINETICS
400105* - Separation Procedures