中文摘要：

根据熔融还原原理,进行了铜渣熔融还原炼铁研究.考察了碱度、保温温度、保温时间、CaF2添加量对铜渣中铁收率和铁水脱S,P的影响.XRD分析结果表明,水淬铜渣中含铁物相主要为2FeOSiO2和Fe3O4.确定的铜渣熔融还原炼铁的合理工艺条件为：惰性气氛下,碱度1.6,保温温度1575℃,保温时间30min,CaF2/CaO（质量比）为10%.该条件下,铜渣铁收率为89.28%,铁水S含量为0.039%,P含量为0.087%,有效地解决了铜渣熔融还原炼铁铁水S含量偏高的问题.

英文摘要：

According to the mechanism of smelting reduction,the process of smelting reduction ironmaking from copper slag was studied.The effects of slag basicity,holding temperature,holding time and CaF2 addition （mass ratio of CaF2 to CaO） on the iron yield and sulfur,phosphorus removal efficiency from the molten iron were examined.XRD analysis results indicated that the iron phases in the copper residue were mainly 2FeO SiO2 and Fe3O4.In N2 atmosphere,the iron yield of 89.28%,sulfur content in hot metal of 0.039%,and phosphorus content of 0.087% were obtained in the conditions of basicity 1.6,holding time 30 min at 1575℃ and CaF2/CaO 10%.The study worked out the problem of high sulfur content in the iron from smelting reduction.