Process and apparatus for the continuous refining of blister copper
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United States of America Patent
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Apr 3, 2001
Grant Date -
N/A
app pub date -
Feb 1, 1999
filing date -
Feb 12, 1998
priority date (Note) -
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Abstract
Copper matte is processed to anode copper without oxidizing blister copper in an anode furnace. Copper matte, in either molten or solid form, is fed to a continuous copper converting furnace in which it is converted to blister copper and slag. The blister copper and slag collect in the settler region of the furnace and separate into two phases, a blister copper phase and a slag phase (the latter floating upon the former). The converting furnace is equipped with means for stirring or agitating the interface of the blister copper and slag phases such that the sulfur content of the blister copper phase and the copper content of the slag phase are reduced.
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