| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve the efficiency of separating matte and slag by increasing a solution temperature in a slag-producing phase of converter operation. <P>SOLUTION: While operating a converter in a copper metallurgy step, an additive containing metallic iron is added. Here, the additive is at least one chosen from iron scraps, molten or solidified metal containing≥60% metallic iron produced in industrial waste treatment furnaces and materials containing≥60% metallic iron, and the additive is added at the beginning of the slag- producing phase in the converter. The amount of the additive added is 20-100 kg/t (matte) calculated as metallic iron against matte. <P>COPYRIGHT: (C)2003,JPO</p> |
