FIELD: metallurgy.
SUBSTANCE: method of gold extraction involves cyanidation of ore during crushing. Mill is in series supplied with ratio of solid phase to liquid phase from 3:2 to 2:1 preliminary crumbled to grain size fractions from 2 mm to 4 mm of ore, additive of sodium hydroxide to create medium pH from 9 to 11 and saturated with oxygen to concentration of 15 mg/dm3 to 18 mg/dm3 recycled water with content of cyanide from 0.002 to 0.04% and conducted carburisation of ore during crushing in mill to size of less than 74 microns.
EFFECT: intensified cyanidation and increased extraction of gold is enabled.
1 cl, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
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| METHOD OF GOLD EXTRACTION FROM THE CLAY ORES | 1989 |
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| METHOD FOR PROCESSING REFRACTORY PYRRHOTITE-ARSENOPYRITE-PYRITE-BERTHIERITE-STIBNITE GOLD ORES (OPTIONS) | 2023 |
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RU2807008C1 |
