To provide a method for efficiently eluting metal without deteriorating the performance of a metal scavenger.
In the method for eluting metal, a scavenger containing scavenged metal is brought into contact with a elution solution containing an organic complexing agent to elute a metal complex. Thereafter, the elution solution containing the metal complex is brought into contact with an adsorbent material to adsorb the metal complex thereon, and the elution solution in which the concentration of the metal complex is reduced is brought into contact with the scavenger and is circularly used. Alternatively, after the elution of the metal complex into an elution solution, the elution solution is dialyzed, the solution comprising an organic complexing agent is separated to concentrate the metal complex, and the solution comprising the separated organic complexing agent is used as an elution solution. On the other hand, the solution comprising the concentrated metal complex is brought into contact with an adsorbent material to adsorb the metal complex thereon, and the solution in which the concentration of the metal complex is reduced is returned to the dialysis stage, and is used.
COPYRIGHT: (C)2004,JPO
Yumiko Fujita
Masao Tamada
Noriaki Seko
Kazuhiko Yamazaki
Hitoshi Ito
Takahiro Chikazawa
Yoshihisa Tamaki
Japan Atomic Power Company
Japan Atomic Energy Agency
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