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U.S. Department of Energy
Office of Scientific and Technical Information

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