The selective reduction impoverishment of slag from copper smelting with addition of charcoal powder and stirring of inert gas is investigated by the aid of metallurgical analysis, SEM and EDX.

借助于金相分析、SEM和EDX等方法，研究炼铜炉渣加炭粉、通惰性气体搅拌选择性还原贫化过程。

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Arsenic and fluorine contents were determined to obtain their distribution behavior in copper concentrate smelting and sulphuric acid production with the off-gas.

通过对铜精矿冶炼过程及冶炼烟气制酸过程砷、氟含量的测定，确定了在整个系统中砷、氟的分布。

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