Operation method of copper smelting

Details Operation method of copper smelting Operation method of copper smelting

C - Chemistry, Metallurgy

22

B

C22B 11/00 (2006.01) C22B 9/02 (2006.01) C22B 15/00 (2006.01)

Patent

CA 2565643

In copper smelting, copper sulfide ore is smelted in a flash furnace, and a converter, and is refined in an anode furnace. The anode is electrolytically refined. Precious group metal (PGM), such as Pt and Pd are separated from the copper and concentrated in the sludge of the electrolytic process. Powder or granular material containing PGM is conventionally recycled in the copper smelting process such that the recycling material is charged into the flash furnace together with the copper ore and the flux. The recovery ratio is enhanced by means of blowing the recycling material into the converter or the anode furnace through a tuyere(s).

Lors de la fonte du cuivre, du minerai de sulfure de cuivre est fondu dans un four à oxygène et un convertisseur; il est raffiné dans un four à anode. L'anode est raffinée électrolytiquement. Les métaux du groupe des métaux précieux (PGM) comme le platine (Pt) et le palladium (Pd) sont séparés du cuivre et concentrés dans le dépôt du processus électrolytique. Des substances poudreuses ou granulaires contenant des métaux PGM sont recyclées de manière classique lors du processus de fusion du cuivre, de telle sorte que le matériau de recyclage est chargé dans le four à oxygène avec le minerai de cuivre et le fondant. Le pourcentage de récupération est amélioré en soufflant le matériau de recyclage sur le convertisseur ou le four à anode à travers une tuyère.

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