NDLI: Separation of zirconium and hafnium fluorides by the sublimation

Content Provider	Springer Nature Link
Author	Rusakov, I. Yu. Buyvskiy, A. S. Sofrov, V. L. Ageeva, L. D.
Copyright Year	2016
Abstract	A preparation method of zirconium tetrafluoride (ZTF) of the nuclear degree of purity for one separation stage is proposed and confirmed experimentally. For this purpose, initial ZTF vapors should be passed inside the powderlike zirconium dioxide layer 140–150 mm in height or above its layer 1000–1100 mm in length. A process cascade for the fabrication of nuclear-pure ZTF and HTF with the hafnium content higher than 99% for one separation stage in the absence of process wastes is developed and calculated. It is shown that the proposed process cascade for the separation and concentration of ZTF and HTF for one stage makes it possible to prepare ZTF with a hafnium content up to 0.01 wt % from the initial ZTF with a hafnium concentration of 2.0 wt % and a hafnium concentrate with a hafnium content higher than 99%.
Starting Page	412
Ending Page	418
Page Count	7
File Format	PDF
ISSN	10678212
Journal	Russian Journal of Non-Ferrous Metals
Volume Number	57
Issue Number	5
e-ISSN	1934970X
Language	English
Publisher	Allerton Press
Publisher Date	2016-11-16
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	nuclear-pure zirconium tetrafluoride zirconium dioxide purification with respect to hafnium hafnium concentrate process cascade Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Metals and Alloys Mechanics of Materials

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