Separation of actinides from lanthanides

Patent · Sun Jan 01 00:00:00 EST 1989

OSTI ID:867112

Smith, Barbara F ^[1]; Jarvinen, Gordon D ^[1]; Ryan, Robert R ^[1]

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1. Los Alamos, NM

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 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: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4867951
• OSTI ID: 867112
• Country of Publication: United States
• Language: English

Related Subjects

separation
actinides
lanthanides
organic
extracting
solution
extraction
method
useful
separating
elements
actinide
series
periodic
table
lanthanide
trivalent
form
consists
primary
ligand
secondary
preferably
solvent
substituted
monothio-1
3-dicarbonyl
4-acyl-2-pyrazolin-5-thione
4-benzoyl-2
4-dihydro-5-methyl-2-phenyl-3h-pyrazol-3-thione
bmppt
phosphine
oxide
trioctylphosphine
topo
phosphine oxide
organic solvent
periodic table
trioctylphosphine oxide
actinide series
organic extracting
method useful
extracting solution
extraction method
separating elements
solution consists
trivalent form
valent form
lanthanide series
/423/999/