Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1993-05-04
1994-06-14
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
C22B 1506
Patent
active
053206622
ABSTRACT:
There is disclosed a process for continuous copper smelting. At first, a smelting furnace, a separating furnace, a converting furnace, melt launders for connecting the smelting furnace, the separating furnace and the converting furnace in series, a plurality of anode furnaces and blister copper launders for connecting the converting furnace and the anode furnaces are provided. Then, copper concentrate is introduced in the smelting furnace, and melted and oxidized into a mixture of matte and slag. The mixture is received in the separating furnace and the matte is separated from the slag. Subsequently, the matte separated from the slag is oxidized to produce blister copper. Subsequently, the blister copper is caused to flow through the blister copper launders into one of the anode furnaces, and refined into copper of higher quality in the anode furnace. In the refining operation at the anode furnace, the receiving step and the oxidizing step are carried out at least partly in an overlapping fashion.
REFERENCES:
patent: 4005856 (1977-02-01), Themelis et al.
patent: 4144055 (1979-03-01), Peterson
patent: 4178174 (1979-12-01), Arentzen
patent: 4238228 (1980-12-01), Brimacombe et al.
patent: 4504309 (1985-03-01), Mackey et al.
Goto Moto
Iida Osamu
Kikumoto Nobuo
Mitsubishi Materials Corporation
Rosenberg Peter D.
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