Method for treating slag
OwnerPekka Hanniala, Ilkka Kojo +1inventors
InventorsPekka Hanniala, Ilkka Kojo, Risto Saarinen
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Abstract
The invention relates to a method for treating slag created in the production of blister copper processed directly from concentrate in a suspension smelting furnace, such as a flash smelting furnace, in order to recover the copper, so that at least part of the slag is leached in at least one step.
Claims11
A method for recovering copper from slag created in the production of blister copper processed directly from concentrate in a suspension smelting furnace, comprising leaching at least part of the slag in at least one step, dissolving copper of the slag, precipitating the dissolved copper and returning the precipitated copper to the smelting process.
Dependencies are inferred from the claim text.