铜精矿富氧熔炼过程中金银分配的规律  

DISTRIBUTION OF GOLD, SILVER IN OXYGEN ENRICHMENT SMELTING OF COPPER CONCENTRATE

作　　者：郭伟[1] 杨怀东[1] 江志清[1] 田家瑞[1] 

机构地区：[1]北京有色金属研究总院,沈阳冶炼厂

出　　处：《有色金属》1995年第3期65-69,共5页Nonferrous Metals

摘　　要：铜精矿富氧熔炼，操作过程系模拟诺兰达炉操作条件。在熔炼温度１２５０℃、富氧浓度３８％，研究了金、银在渣相和冰铜相中的分布规律。对冶炼冰铜品位在６０％以上的实验结果，引用悬浮修正模型计算值，结果与实验测试结果符合。高氧化度的渣进一步采用电炉贫化处理，研究金、银的走向．从实验结果可以得出金、银回收率与铜回收率有如下关系：ｎＡｕ＝０．８４ｎＣｕ＋０．１６ｎＡｇ＝１．０２ｎＣｕ－０．The distribution of gold and silver between matte and slag was studied under conditions simulating the Noranda process,i.e,smelting temperature of 1250℃ and partial pressure of 38%O2.The experimental results were calculated by means of a correction model for physical suspension when the grade of copper in the matte was over 60%,The calculated value of is agreement with observed data.The behavior of gold and silver was studied in the process of slag puri-fication in electrical furnace, The relationship betwe...

关 键 词：富氧熔炼 渣贫化 冰铜 热力学 分配率 

分 类 号：TF811[冶金工程—有色金属冶金]