METHOD OF HEAP LEACHING Russian patent published in 1994 - IPC

Abstract RU 2009234 C1

FIELD: hydrometallurgy, geotechnology. SUBSTANCE: ores bearing fine-dispersed gold are cyanated by sprinkling alkaline cyan containing solution in amounts not exceeding the inter pore volume of ore and rock mass. After soaking gold is leached by cyan-free solution of caustic potash (caustic soda). EFFECT: increased efficiency of extraction. 2 tbl, 1 dwg

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RU 2 009 234 C1

Authors

Ostroumova I.D.

Rysev V.P.

Sakh'Janov L.O.

Fazlullin M.I.

Menchinskij V.V.

Pan V.P.

Dates

1994-03-15—Published

1991-11-25—Filed