Separation of lithium ions by chromatography

Conference · Sat Nov 12 00:00:00 EST 1983

OSTI ID:6508681

Lee, D A

Trioctylphosphine oxide (TOPO) forms an adduct with lithium dibenzoylmethane (DBM). The chelate is readily extractable by nonaqueous solvents, and this is the basis for the chromatographic separation of lithium from other alkali ions. A liquid chromatography column with 0.1 M DBM - 0.1 M TOPO in dodecane as the stationary phase was used. Lithium ions were retrained on the column while the remaining alkali metal ions were eluted with ammonium hydroxide. Lithium was eluted with 0.6 N hydrochloric acid. The structure of the extracted lithium species was determined by extraction equilibria studies and by the method of continuous variations.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6508681
• Report Number(s): CONF-8311198-1; ON: DE85000972
• Resource Relation: Conference: Southeastern Regional American Chemical Society meeting, Charlotte, NC, USA, 9 Nov 1983
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
LITHIUM
LIQUID COLUMN CHROMATOGRAPHY
ALKALI METALS
HYDROCHLORIC ACID
SOLVENT EXTRACTION
TOPO
CHROMATOGRAPHY
ELEMENTS
EXTRACTION
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
SEPARATION PROCESSES
400105* - Separation Procedures