Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1989-10-02
1991-09-17
Silverman, Stanley S.
Liquid purification or separation
Processes
Ion exchange or selective sorption
210719, 210757, 210209, 210263, 423 2, 423 6, B01D 1500
Patent
active
050492845
ABSTRACT:
The improved method and apparatus are capable of efficient removal of radioactive europium from solutions of radioactive gadolinium in a simple way. A mixture of a zinc and a graphite powder is packed into a column and both a conditioning solution corresponding to a liquid electrolyte and a sample solution containing radioactive gadolinium and europium are allowed to pass through the column.
REFERENCES:
patent: 4622176 (1986-11-01), Motoki et al.
IAEA/WMRA/13-81/11, "Removal of Ru-106 with zinc-charcoal column", H. Nakamura, R. Motoki, T. Sato, et al.
Radiochimica Acta 48, "Chemical Species of Ruthenium in Radioactive Aqueous and Decontamination Mechanism of Ruthenium with Zinc-Charcoal Mixed Column", pp. 101-113, Tadashi Sato and Ryozou Motoki.
JAERI-M 86-077 (May 1986) (Abstract).
JAERI-M 84-153 (Sep. 1984) (Abstract).
JAERI-M 84-015 (Feb. 1984) (Abstract).
Jaeri-M 83-197 (Nov. 1983) (Abstract).
"Galolinium-153 Production at the Oak Ridge National Laboratory", by D. W. Ramey, Conf-870822-6, DE87 013678 (1987).
"The Application of Electroreduction of Europium in the Production of Gadolinium-153", by T. C. Quinby, et al., ORNL/RM-10284, DE87 005281.
"Use of High-Pressure Ion Exchange for the Production of Gadolinium 153, Status Report", by J. C. Posey, ORNL/TM-9988, DE86 010062 (1986).
"Selective Electroreduction of Europium in the Production of Gadolinium-153", by T. C. Quinby, et al., Radiochimica Acta 43, pp. 161-165, (1988).
"Radioactive Ruthenium Removal From Liquid Wastes of 99Mo Production Process Using Zinc and Charcoal Mixture", by R. Motoki, et al., pp. 63-73 IAEA-TECDOC-337 (1985).
Motoki Ryozo
Terunuma Kusuo
Japan Atomic Energy Research Institute
Nessler Cynthia L.
Silverman Stanley S.
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