Method for separating rare earth metals

Details Method for separating rare earth metals Method for separating rare earth metals

1983-05-25

1985-04-30

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Rare earth metal

75101BE, 423DIG14, C01F 1700

Patent

active

045143676

ABSTRACT:
Rare earth metals are adsorbed on an ion exchange 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.

REFERENCES:
patent: 2877093 (1959-03-01), Tompkins et al.
patent: 3033646 (1962-05-01), Hansen
patent: 3037841 (1962-06-01), Krumholz
patent: 4393353 (1983-07-01), Miyake et al.
Miyamatsu et al., (1) "Chem. Absts.", vol. 98, Feb. 1983, #57748c.
Miyamatsu et al., (2), "Chem. Absts.", vol. 98, Mar. 1983, #76013a.
Akiyama et al., "Chem. Absts.", vol. 96, 1982, #163866h.

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