Process for the preparation of ultrapure active metal fluorides

Details Process for the preparation of ultrapure active metal fluorides Process for the preparation of ultrapure active metal fluorides

1984-12-27

1988-06-21

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 211, 423 76, 423252, 423489, C01F 908, C01G 106

Patent

active

047524545

ABSTRACT:
This invention provides a method for the preparation of ultrapure active metal fluorides of increased purity from their metal oxides by reacting an active metal with a predetermined amount of HF(aq) to form a solid reaction product which is dried under controlled heating to form a hydrated fluoride. This hydrated active metal fluoride is then subjected to reactive atmosphere processing comprising hydrofluoric acid vapor in a CO.sub.2 reactive carrier gas and a selected fluoride compound in the gas phase for a predetermined period of time to further increase anion purity.

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