METHOD OF EXTRACTION URANIUM FROM ORE MATERIALS Russian patent published in 2001 - IPC

Abstract RU 2165994 C1

FIELD: chemical industry. SUBSTANCE: method comprises extraction of uranium by heap or underground leaching. Method comprises treatment of ore material with sulfuric acid solution. Ammonium alkali or alkali-earth metal are further added to sulfuric acid solution. Lignosulfonate concentration in leaching solution varies from 0.05 to 5.0 g/l. Method makes it possible to reduce leaching process time, lower consumption of acid and decrease volume of production solutions. EFFECT: more efficient extraction method. 2 cl, 2 dwg

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RU 2 165 994 C1

Authors

Filippov A.P.

Nesterov Ju.V.

Shatalov V.V.

Krotkov V.V.

Mimonov A.V.

Dates

2001-04-27—Published

2000-03-21—Filed