METHOD FOR OPERATING COPPER SMELTING FURNACE

摘要

PROBLEM TO BE SOLVED: To provide a method for operating a copper smelting furnace with which Cu content in slag can be reduced in the operation in which the copper content in a white metal supplied into the copper smelting furnace is 63-68 mass%. SOLUTION: In the operation at a slag-making period, in which the copper content of the white metal supplied into the copper smelting furnace is 63-68 mass%, the method for operating the copper smelting furnace lowers the Cu content in the slag by adding metallic grain containing >=70 mass% solid Fe and 1-5 mass% C.