Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Rare earth metal
Patent
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.
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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.
Asami Tadao
Ichijo Hisao
Ogawa Shigeo
Suehiro Tetsuro
Suzuki Mitsuo
Agency of Industrial Science & Technology
Carter Herbert T.
Nitivy Co., Ltd.
Seimi Chemical Co. Ltd.
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