Supercritical fluid extraction of lanthanides and actinides from solid materials with a fluorinated [beta]-diketone
Journal Article
·
· Analytical Chemistry (Washington); (United States)
- Univ. of Idaho, Moscow, ID (United States)
Direct extraction of metal ions by supercritical carbon dioxide is highly inefficient because of the charge neutralization requirement and the weak solute-solvent interactions. One suggested approach of extracting metal ions by supercritical carbon dioxide is to convert the charged species into metal chelates using a chelating agent in the fluid phase. This paper describes a method of extracting lanthanide and uranyl ions from a solid material by supercritical carbon dioxide containing a fluorinated beta-diketone, 2,2-dimethyl-6,6,7,7,8,8,8-heptafluoro-3,5-octanedione(FOD). Potential applications of this SFE method for separating the f-block elements from environmental samples are discussed. 13 refs., 2 tabs.
- OSTI ID:
- 6915247
- Journal Information:
- Analytical Chemistry (Washington); (United States), Journal Name: Analytical Chemistry (Washington); (United States) Vol. 65:18; ISSN 0003-2700; ISSN ANCHAM
- Country of Publication:
- United States
- Language:
- English
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·
OSTI ID:6551178
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400101 -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
400105* -- Separation Procedures
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
ACTIVATION ANALYSIS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
COMPILED DATA
DATA
EXTRACTION
INFORMATION
KETONES
LIGANDS
NEUTRON ACTIVATION ANALYSIS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SUPERCRITICAL GAS EXTRACTION
URANIUM COMPOUNDS
URANYL COMPOUNDS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400101 -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
400105* -- Separation Procedures
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
ACTIVATION ANALYSIS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
COMPILED DATA
DATA
EXTRACTION
INFORMATION
KETONES
LIGANDS
NEUTRON ACTIVATION ANALYSIS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SUPERCRITICAL GAS EXTRACTION
URANIUM COMPOUNDS
URANYL COMPOUNDS