Removal of uranium contamination from magnesium fluoride slag

Details Removal of uranium contamination from magnesium fluoride slag Removal of uranium contamination from magnesium fluoride slag

1997-08-22

1998-12-22

Nguyen, Ngoc-Yen

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423155, 423164, 423490, 423 20, 423157, 205 46, C01F 1122, C01F 528

Patent

active

058515003

ABSTRACT:
Magnesium fluoride slag contaminated with metallic uranium or uranium compounds is treated by digestion with potassium hydroxide to soluble potassium fluoride and insoluble magnesium hydroxide. The solid and liquid phases are then separated and the solids phase is dissolved in acid to form a solution of metal salts. The liquid phase is treated with lime to precipitate calcium fluoride and convert the potassium back to potassium hydroxide for recycle to the digestion reaction. The metal salts are separated to remove the uranium salt from the magnesium salt. The result is an efficient removal of uranium contamination from the magnesium, the recovery of magnesium in a manner that permits efficient reuse or safe disposal, and the production of calcium fluoride useful for a variety of purposes.

REFERENCES:
patent: H59 (1986-05-01), Kreuzmann
patent: 2733126 (1956-01-01), Spiegler
patent: 3341290 (1967-09-01), Bornemann et al.
patent: 3957676 (1976-05-01), Cooley et al.
patent: 3961027 (1976-06-01), Crossley
patent: 3965238 (1976-06-01), Tabata et al.
patent: 4021313 (1977-05-01), Hausberger
patent: 4115219 (1978-09-01), Gancy et al.
patent: 4279705 (1981-07-01), Riggs, Jr.
patent: 4412861 (1983-01-01), Kruezmann
patent: 4495160 (1985-01-01), Moote et al.
patent: 4554144 (1985-11-01), Ore
patent: 4800042 (1989-01-01), Kurumada et al.
patent: 4874599 (1989-10-01), Gay et al.
patent: 4966710 (1990-10-01), Kim et al.
patent: 5147616 (1992-09-01), Ackerman et al.
patent: 5409680 (1995-04-01), Kaczur et al.
patent: 5470559 (1995-11-01), Grolman et al.
patent: 5516496 (1996-05-01), Slage
patent: 5613241 (1997-03-01), Forsberg et al.

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