As harmful impurity in copper scrap, nickel shall be removed thoroughly from anode furnace by means of oxidation, so as to make sure satisfactory cathodes are produced in electrolytic operation.

• 杂铜中多余的镍作为有害杂质在阳极炉彻底氧化造渣除去,以确保阳极铜在电解时获得满意的阴极铜;造成了大量的镍白白损失。