FIELD: metallurgy.
SUBSTANCE: invention relates to nonferrous metallurgy. Copper-electrolyte sludge is dressed. Compounds of lead and stibium are removed from dressed sludge to be mixed with cathode product of leaching of selenium from copper-electrolyte sludge at 5-10:1 ratio. Then, cathode leaching in alkaline electrolyte from obtained mix is performed at current density of 2000-3000 A/m2. To prevent selenium circulation between cathode and anode, the latter are separated by web permeable for electrolyte.
EFFECT: two - two and a half-fold increase in selenium cathode leaching, one and a half - two-fold decrease in selenium content in sludge.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESSING METHOD OF COPPER ANODE SLIME | 2015 |
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| METHOD OF COPPER ELECTROREFINING LEADED SLIMES TREATMENT (VERSIONS) | 2011 |
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