镀锌灰的热酸浸出和除铁试验研究  

Research on Leaching of Zinc Using Hot Acid From Zinc Ash and Removal of Iron From Leaching Solution by Jarosite Process

作　　者：何小凤[1] 李运刚[1] 陈金[1] 

机构地区：[1]河北联合大学,河北唐山063009

出　　处：《湿法冶金》2014年第6期463-465,共3页Hydrometallurgy of China

摘　　要：采用单因素试验法研究了从镀锌灰中热酸浸出锌及黄钾铁矾法除铁。试验结果表明:在硫酸初始质量浓度为150g/L、浸出温度90℃、浸出时间3h、液固体积质量比6∶1条件下,锌浸出率在97%以上;用黄钾铁矾法除铁,在温度90℃、反应时间3h条件下,铁去除率在98%以上。By single factor experiments ,leaching of zinc using hot acid from zinc ash and removal of iron from the leaching solution by jarosite process were researched .The results show that the optimum conditions for leaching zinc are determined as follow s initial acid concentration of 150 g/L ,leaching temperature of 90 ℃ ,ratio between liquid volume and solid mass of 6∶1 .At the optimum conditions , the leaching rate of zinc is more than 97% .Removal of iron is over 98% under the conditions of temperature of 90 ℃ ,reaction time of 3 h .

关 键 词：镀锌灰 硫酸 浸出 黄钾铁矾 铁 去除 

分 类 号：TF803.2[冶金工程—有色金属冶金]