Scrap melting in anode furnace processes
AssigneeOutotec (Finland) Oy
InventorsHarri Talvensaari, Akusti Jaatinen
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Abstract
Provided is a method for melting copper scrap and/or refining blister copper, comprising the steps of: (a) charging of copper scrap into an empty anode furnace and melting the copper scrap; (b) charging molten blister copper into the anode furnace; (c) optionally charging more copper scrap into the anode furnace and melting the copper scrap; (d) optionally repeating steps (b) and/or (c) one or more times until the anode furnace is full and a desired amount of copper scrap has been charged and melted until a final copper batch is obtained; and (e) refining the final copper batch to obtain anode copper.
Claims8
A method of melting copper scrap and/or refining blister copper, comprising the steps of:
- (a) charging of copper scrap into an empty anode furnace and melting the copper scrap;
- (b) after performing step (a) charging molten blister copper into the anode furnace;
- (c) optionally charging more copper scrap into the anode furnace and melting the copper scrap;
- (d) optionally repeating steps (b) and/or (c) one or more times until the anode furnace is full and a desired amount of copper scrap has been charged and melted until a final molten copper batch is obtained which occurs at least after step (b);
- (e) refining the final molten copper batch to obtain anode copper;
- (f) emptying the anode furnace by pouring the anode copper from the anode furnace into anode molds to provide said empty anode furnace and repeating steps (a) to (f) after step (f).
Dependencies are inferred from the claim text.