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Application

2002108147/02, 2002-04-01

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Start date

2002-04-01

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Actual filing date

2002-04-01

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Published

2004-12-27

(72)

Inventor

Sazanov N.P.Litvinenko V.G.Sheludchenko V.G.Tupikov D.G.Sharavara N.A.Gikal A.V.Gorbunov V.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Proizvodstvennoe Gorno-Khimicheskoe Ob"Edinenie"

METHOD FOR URANIUM RECOVERY FROM ORES Russian patent published in 2004 - IPC

Abstract RU 2243276 C2

FIELD: reprocessing of uranium ores.

SUBSTANCE: uranium is recovered from ores by subsequent steps of grinding, ore breakage, leaching of ore slurry with sulfuric acid; sorptive uranium recovery with anionite; uranium desorption from saturated anionite with sulfuric and nitric acid solutions; and extractive repurifying of stripping commercial grades with organic mixture. After uranium desorption anionite is treated with sulfuric and nitric acid extraction raffinates followed by anionite washing from excessive acidity with water. Washed anionite is recycled to uranium sorption, and cleaning solution is recycled to manufacturing of desorbent solution.

EFFECT: reduced residual uranium capacity of anionite; decreased uranium loss with liquid phase of waste slurry.

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RU 2 243 276 C2

Authors

Sazanov N.P.

Litvinenko V.G.

Sheludchenko V.G.

Tupikov D.G.

Sharavara N.A.

Gikal A.V.

Gorbunov V.A.

Dates

2004-12-27—Published

2002-04-01—Filed