METHOD OF EXTRACTION OF METAL COMPONENTS FROM METAL-CONTAINING MATERIAL (VERSIONS) Russian patent published in 2002 - IPC

Abstract RU 2192490 C2

FIELD: extraction of metal components from metal-containing material. SUBSTANCE: proposed method includes treatment of metal-containing material in sulfuric acid which includes sulfuric acid, reductant and carbon source; heating mixture at temperature of 75 to 95 C and separation of solution from solid fraction containing uranium. Sulfuric acid solution may additionally contain hydrofluoric acid (HF) used as fluorine ions. EFFECT: increased extraction of metals; increased concentration of residual radioactive elements in solid fraction; reduced contamination of environment. 26 cl, 3 ex

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RU 2 192 490 C2

Authors

Khard Robert A.

Dates

2002-11-10—Published

1997-03-14—Filed