Production of uranium tetrafluoride

Details Production of uranium tetrafluoride Production of uranium tetrafluoride

1985-06-20

1987-09-15

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204 15, 423259, C25B 124

Patent

active

046937951

ABSTRACT:
In a process for the production of uranium tetrafluoride (UF.sub.4), uranic oxides, UO.sub.3 and U.sub.3 O.sub.8, are dissolved in dilute sulphuric acid (H.sub.2 SO.sub.4) and hydrofluoric acid (HF) is added to produce a uranyl fluoride-sulphate solution which is electrolytically reduced to uranous fluoride-sulphate complexes from which hydrated uranium tetrafluoride is precipitated by the addition of dilute HF at elevated temperature (preferably above 90.degree. C.). The uranyl fluoride-sulphate solution can alternatively be produced by dissolving uranyl fluoride in H.sub.2 SO.sub.4 or from uranyl sulphate solutions (derived from solvent extraction or ion exchange purification processes) conditioned with HF.

REFERENCES:
patent: 2687995 (1954-08-01), Lofthouse
patent: 2733200 (1956-01-01), Kunin
patent: 2775552 (1956-12-01), Boyer
patent: 2859156 (1958-11-01), Allen et al.
patent: 3065045 (1962-11-01), Ito et al.
patent: 3347761 (1967-10-01), Blcek

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