Method of continuous fire refining of copper

Details Method of continuous fire refining of copper Method of continuous fire refining of copper

C - Chemistry, Metallurgy

22

B

C22B 15/14 (2006.01)

Patent

CA 2579579

A method of intensive, continuous copper fire refining, said method comprising the stages of: continuous tapping in a liquid copper (4) into a first oxidation reactor; liquid copper oxidation with combustion gases containing oxygen or with air; simultaneous formation of slag collecting impurities; continuous tapping out of oxidized copper and refining slag from the first reactor (8); continuous tapping in of oxidized copper into a second reduction reactor; reduction of copper with carbon and reducing gases formed by partial combustion of fuel and carbon; and continuous tapping out of reduced copper (14).

L'invention concerne un raffinage au feu intensif en continu du cuivre comprenant les étapes consistant: à tarauder en continu un cuivre liquide (4) dans un premier réacteur d'oxydation; l'oxydation de cuivre liquide avec des gaz de combustion renfermant de l'oxygène ou avec de l'air; à former simultanément des impuretés de recueil de crasses; à tarauder en continu le cuivre oxydé et à raffiner les crasses provenant du premier réacteur (8); à tarauder en continu le cuivre oxydé dans un second réacteur de réduction; à réduire le cuivre au moyen de carbone et à réduire des gaz formés par la combustion partielle de combustible et du carbone et à tarauder en continu le cuivre réduit (14).

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