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Enhanced Recovery of Technetium(VII) by Primary Amine Extraction from Aqueous Fluoride Solutions and Aqueous Alkaline Solutions

Published online by Cambridge University Press:  15 February 2011

K. Ito
K. Ito*
Affiliation:
Institute for Advanced Materials Processing, Tohoku University, Katahira, Sendai, Miyagi, Japan, 980–77
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Abstract

The extraction behavior of technetium from aqueous hydrofluoric acid solution has been investigated. The recovery of Tc using two techniques, primary amine extraction in mixed heptane and 1–octanol solution and stripping with a mixed aqueous ammonium hydroxide – ammonium carbonate solution has been studied. The determination of distribution ratios and percentages of technetium in both extraction and stripping cycles was established as were the volume ratios between organic and aqueous phases. The stripping mechanism in the aqueous solution has also been investigated by the slope analysis method.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 353: Symposium – Scientific Basis for Nuclear Waste Management XVIII , 1994 , 1307
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1. CURE: Clean Use of Reactor Energy, WHC–EP–0268, (1990)Google Scholar
2. Ito, K.; J.Radioanal.Nucl.Chem.,Article, 171, No.2 pp.371–382(1993)Google Scholar
3. Ito, K., Akai-Imoto, Y.: J.Radioanal.Nucl.Chem.,Article, 178, No.l pp.41–53(1994)Google Scholar
4. Osseo-Asare, K., Sep.Sci.Technol.,23, pp.l269–1284(1988)Google Scholar
5. Shmidt, V.V.: Amine Extraction, pp. 7–10, Israel Program for Scientific Translation, Jerusalem, (1971)Google Scholar
6. Yu, S., Wu, Z. and Chen, J., Iron removal from sulfuric acid solution by solvent extraction with mixtures of extractants, pp. 334 – 352 in the IRON CONTROL IN HYDROMETALLUGY. Ed. by Dutrzac, J.E. and Monhemius, AJ., John Wiley & Sons, New York, 1992 Google Scholar
7. Mazurenko, E.A.,The Handbook on Extraction,Tekhnika, Kiev, 1972 ; Japanese translation, p.222 Japanese-Soviet Communication Co. Ltd. Wakayama,1974,Google Scholar
8. Karalova, Z.K., Bunina, T.V., and Myasoedov, B.F.; Russian Radiochemistry, pp.558–561(1984)Google Scholar