Method for separating rare earth metal
Patent
·
OSTI ID:5160231
Rare earth metals are adsorbed on an ion exchanger fiber comprising an ion exchanger having a strong cation exchange group and a weak cation exchange group, and the adsorbed metals are fractionally eluted with an aqueous solution of a chelating agent, whereby the respective rare earth metals can be separated at high efficiency in a short time. According to this method, elution can be accomplished at an elution rate of 5.0 or above in terms of space velocity.
- Assignee:
- Agency of Industrial Science and Technology Nitivy Co. Ltd. Seimi Chemicals Co. Ltd. (Japan)
- Patent Number(s):
- US 4514367
- OSTI ID:
- 5160231
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ABSORPTION
CATIONS
CHARGED PARTICLES
EFFICIENCY
ELEMENTS
EXTRACTION
FIBERS
FRACTIONATION
ION EXCHANGE MATERIALS
IONS
MANAGEMENT
MATERIALS
MATERIALS RECOVERY
METALS
PROCESSING
PRODUCTION
RARE EARTHS
RECOVERY
SEPARATION PROCESSES
SOLVENT EXTRACTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
WASTE MANAGEMENT
WASTE PROCESSING
400105* -- Separation Procedures
ABSORPTION
CATIONS
CHARGED PARTICLES
EFFICIENCY
ELEMENTS
EXTRACTION
FIBERS
FRACTIONATION
ION EXCHANGE MATERIALS
IONS
MANAGEMENT
MATERIALS
MATERIALS RECOVERY
METALS
PROCESSING
PRODUCTION
RARE EARTHS
RECOVERY
SEPARATION PROCESSES
SOLVENT EXTRACTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
WASTE MANAGEMENT
WASTE PROCESSING