Japanese Patent JPH0251850

B2

A process for separately recovering uranium and hydrofluoric acid from a waste liquor containing uranium and fluorine comprises a neutralizing precipitation step wherein a magnesium compound is added to the waste liquor containing uranium and fluorine to form a precipitate and the thus formed precipitate is then separated; a distillation step wherein an aqueous solution of sulfuric acid is added to the precipitate separated in said neutralizing precipitation step to dissolve the precipitate and the thus formed solution is then distilled to recover hydrofluoric acid as a distillate; and a uranium recovery step wherein uranium is recovered from a residue produced by said distillation step.

WO/1994/017898	OFF-GAS SCRUBBER SYSTEM
JP5965480	How to separate and collect 2, 3, 3, and 3-tetrafluoro pro pen and hydrofluoric acid
WO/1997/045371	THERMAL PROCESS FOR THE CONVERSION OF URANIUM HEXAFLUORIDE

ECHIGO YOSHIAKI
AMIMOTO HIROTAKA
YAMAO MUTSUNORI
ISHIKURA TADASHI
OTOMURA KEIICHIRO
FUJISAKI SAKAE
OGURA ZENICHI

JP7846886A

November 08, 1990

April 04, 1986

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YUNICHIKA KK
DORYOKURO KAKUNENRYO KAIHATSU JIGYODAN

C01B7/19; C01G43/00; C01G43/06; C22B60/02

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