fire refining

fire refining

[¦fīr ri′fīn·iŋ]
(metallurgy)
The refining of blister copper by treatment in a furnace under oxidizing conditions to remove the impurities and under reducing conditions to remove the excess oxygen.
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References in periodicals archive ?
This order confirms the position of ANDRITZ Maerz as one of the globally leading suppliers of fire refining furnaces and converters for the copper industry.
Converter and fire refining practices; proceedings.
Symposium on Converter and Fire Refining Practices (2005: San Francisco, CA) Ed.
Seven sections of the book: introduction, primary smelting, hydrometallurgy, electrolytic refining, fire refining, by-product recovery (notably tin, tellurium, zinc and silver), and manufacture of bismuth products, focus on Chinese metallurgical plant operations and include references to common operating difficulties such as difficult-to-melt charges and furnace breakdowns.