铅氧化物熔体碳热还原过程中银的分配研究  

Study on Silver Distribution in Lead and Slag in Carbothemic Reduction of Lead-oxide Melt

作　　者：魏威[1] 陈启元[1] 谭军[1] 李洁[1] 王辉 廖舟 张平民[1] 刘常青[1] 

机构地区：[1]中南大学化学化工学院,长沙410083 [2]株洲冶炼集团股份有限公司,湖南株洲412000

出　　处：《有色金属（冶炼部分）》2012年第11期30-32,36,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家高技术研究发展计划(863计划)资助项目(2010AA065201)

摘　　要：模拟基夫赛特炼铅工艺搭配处理浸锌渣过程的碳热还原阶段,主要研究了不同温度下银在粗铅及炉渣之间的分配。结果表明,在1 200℃还原熔炼温度下,银在铅与炉渣中的分配比值最大为30.13;1 300℃时最大分配比值为19.17。金属银能很好地在粗铅中富集,为使更多的银进入粗铅相,提高银回收率,铅氧化物熔体的碳热还原温度不宜太高。The carbothemic reduction of Kivcet lead smelting process treating zinc leaching residue was sim-ulated. Silver distributions in crude lead and slag in different temperatures were studied. The results show that the maximum distribution ratio of silver in lead and slag is 30.13 at 1 200℃, while 19.17 at 1 300 ℃. The silver can be well enriched in crude lead. The temperature of carbothemic reduction of lead oxide melt should not he too high to make more plenty of silver into lead to improve silver recovery.

关 键 词：基夫赛特工艺 浸锌渣 银 碳热还原 分配 

分 类 号：TF813[冶金工程—有色金属冶金] TF832