Doryokuro Kakunenryo Kaihatsu Jigyodan

Sakae Fujisaki

Yoshiaki Echigo

Tadashi Ishikura

Mutsunori Yamao

Keiichiro Otomura

Yoshikazu Ogura

Hirotaka Amimoto

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.

Growing community of inventors

Okayama, Japan

Sakae Fujisaki