Method for treating sulfide raw materials

Details Method for treating sulfide raw materials Method for treating sulfide raw materials

1980-03-07

1981-11-17

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 23, C22B 1500

Patent

active

043009492

ABSTRACT:
The present invention relates to the field of non-ferrous metallurgy and more specifically to methods for treating sulfide raw materials.
The method comprises an autogenous smelting of the raw materials with flux additions in a blast furnace, where a quartz layer 0.3 to 1.5 m high is provided immediately above the tuyeres of the furnace. The smelting process is conducted with oxygen-enriched air blowing with an oxygen consumption of 300 to 400 m.sup.3 /tonne of sulfide material. The smelting method produces matte suitable for subsequent converting, elemental sulfur, and off-gases containing 8 to 25% SO.sub.2.
The method can be applied for copper and copper-nickel production.

REFERENCES:
patent: 3281236 (1966-10-01), Meissner
patent: 3890139 (1975-06-01), Suzuki
patent: 3990889 (1976-11-01), Queneau

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