FIELD: metallurgy.
SUBSTANCE: method comprises mixing of copper melted slag in a cleaning device, a reducing agent and a compressed inert gas to obtain a copper-free slag. Copper melted slag containing copper in oxidized state in amount of 10 to 20% by weight is used, the inert gas is fed to the cleaning device at 100 to 800 kPa pressure.
EFFECT: boilling of slag and intensified mixing.
9 cl, 1 dwg, 2 ex
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