Extraction process for removing metallic impurities from alkalide metals

Patent · Thu Mar 19 23:00:00 EST 1987

OSTI ID:6743192

Royer, L T

A development is described for removing metallic impurities from alkali metals by employing an extraction process wherein the metallic impurities are extracted from a molten alkali metal into molten lithium metal due to the immiscibility of the alkali metals in lithium and the miscibility of the metallic contaminants or impurities in the lithium. The purified alkali metal may be readily separated from the contaminant-containing lithium metal by simple decanting due to the differences in densities and melting temperatures of the alkali metals as compared to lithium.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• Assignee: TIC; ERA-14-001184; EDB-88-185225
• Patent Number(s): PATENTS-US-A6028267
• OSTI ID: 6743192
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALKALI METALS
DECANTATION
ELEMENTS
EXTRACTION
FLUIDS
IMPURITIES
INVENTIONS
LAYERS
LIQUID METALS
LIQUIDS
LITHIUM
METALS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PURIFICATION
SEPARATION PROCESSES
SOLIDIFICATION
SOLVENT EXTRACTION
SOLVENT PROPERTIES