Process for producing raw copper continuously in one stage from sulfidic copper concentrates and ores containing impurities such as lead, antimony, bismuth and arsenic, by feeding finely-divided copper concentrate and ore and oxygen or oxygen-enriched air into the upper part of the react
A suspension smelting furnace system for suspension smelting of finely-divided sulfidic and/or oxidic ores or concentrates is disclosed. The furnace system has a horizontal lower furnace to which the lower ends of at least one vertical suspension reaction shaft and one rising-flow sh
