Method of recovering copper and a furnace for carrying out...

Details Method of recovering copper and a furnace for carrying out... Method of recovering copper and a furnace for carrying out...

C - Chemistry, Metallurgy

22

B

53/278

C22B 4/04 (2006.01) C22B 4/00 (2006.01) C22B 15/00 (2006.01)

Patent

CA 1329325

ABSTRACT OF THE DISCLOSURE: A method of recovering copper from oxidic and/or silicate copper ores by way of pyrometallurgy. With this method, the copper ores are melted in a reaction zone heated by plasma jets and maintained at a temperature of at least 1,500°C. At this high temperature, the thermal decomposition of the oxidic or silicate copper compounds occurs, whereas no such decomposition of accompanying metal oxides takes place. The furnace used to perform this method includes a refractory lining of carbonless material. The reaction furnace and, thus, the reaction zone are sealed relative to the atmosphere to prevent oxygen from entering thereinto. An inert gas is used as plasma gas.

542014

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