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|Title:||Review of processes for the production of hafnium-free zirconium.|
|Publisher:||Australian Atomic Energy Commission|
|Citation:||Royston, D., & Alfredson, P. (1970). Review of processes for the production of hafnium-free zirconium (AAEC/TM570). Lucas Heights, N.S.W.: Research Establishment, Australian Atomic Energy Commission.|
|Abstract:||The three main industrial processes for the production of hafnium-free zirconium are described in terms of their head-end, zirconium-hafnium separation and zirconium metal forming steps. Possible improvements and alternative processes are outlined. Zirconium-hafnium separation schemes based on selective reduction of the chlorides or distillation and sublimation techniques show the most promise for future development in competition with the established hexone-thiocyanate and TBP-nitric acid solvent extraction schemes. Head-end steps involving direct chlorination of zircon in fluidised beds or caustic fusion and metal production via electrowinning warrant further development.|
|Gov't Doc #:||869|
|Appears in Collections:||Scientific and Technical Reports|
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