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Plasma Chemical Processing of Depleted UraniumHexafluoride

Published online by Cambridge University Press:  03 September 2012

A. V. Ivanov ,
V. M. Abashkin ,
E. A. Filippov  and
Y. N. Tumanov
A. V. Ivanov
Affiliation:
Russian Research Institute of Chemical Technology, 33 Kashirskoe Avenue, Moscow 115230, vs@khimcon.msk.ru
V. M. Abashkin
Affiliation:
Russian Research Institute of Chemical Technology, 33 Kashirskoe Avenue, Moscow 115230, vs@khimcon.msk.ru
E. A. Filippov
Affiliation:
Russian Research Institute of Chemical Technology, 33 Kashirskoe Avenue, Moscow 115230, vs@khimcon.msk.ru
Y. N. Tumanov
Affiliation:
Russian Scientific Center, Kurchatov Institute, Moscow
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Abstract

A reprocessing of uranium hexafluoride waste, which was accumulated in thenuclear industry for many years, is a very vital question now. There are alot of gas tanks filled with UF6 that have been exposed for along time and are posing a serious ecological danger. A plasma chemicaltechnique is proposed here to transform the uranium hexafluoride depletedwith isotope 235U (less than 0.1%) into the safe storage form -powdered uranium oxides. The second product is HF (70–80% aqueous solution)which may be easily reprocessed by means of the rectification column up topure anhydrous hydrogen fluoride.

The designed technological scheme and the basic technical characteristics ofthe plasma chemical converter are presented. The proposed technique isefficient, easy controlled and free of any harmful by-products.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 465: Symposium II – Scienfific Basis for Nuclear Waste Management XX , 1996 , 609
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

1. Ivanov, V.S., Astavin, V.S., Tumanov, Yu.N. et al. Thermodynamics and kinetics of uranium fluorides in (Ar-H2O) - plasma. Proceeding of the 3-rd Conference on Uranium Chemistry (USSR). Moscow: Nauka, p. 90 (1985)Google Scholar
2. Tumanov, Yu.N.. Electrothermical processes in modern chemical industry and metallurgy (Rus.) Moscow: Energoizdat (1981)Google Scholar