从含银酸浸液中回收银的试验研究  

Recovery Silver From Silver-containing Acid Leaching Solution

作　　者：胡良辉 曾斌[2] 余攀[2] 毛永星 

机构地区：[1]赣州亚腾工贸有限公司,江西赣州341000 [2]江西理工大学冶金与化学工程学院,江西赣州341000 [3]赣州江钨新型合金材料有限公司,江西赣州341000

出　　处：《湿法冶金》2014年第2期118-120,共3页Hydrometallurgy of China

基　　金：福建省区域科技重大合作项目(2011H4025)

摘　　要：研究了从某含银酸浸液中回收银,考察了沉银试剂类型及加入量、反应温度、体系pH、反应时间对银回收率的影响,确定了较优工艺参数。试验结果表明,在饱和亚硫酸钠溶液用量为15%、反应温度为70℃、体系pH为2.0、反应时间9h条件下,银回收率为98.14%。Recovery silver from a silver-containing acid leaching solution has been researched .The effects of precipitation agent and its dosage ,reaction temperature ,system pH and reaction time on recovery rate of silver were examined .The optimal conditions were determined .The results show that under the conditions of saturated sodium sulfite solution accounting for the acid leaching solution volume of 15% ,reaction temperature of 70 ℃ ,system pH of 2 .0 and reaction time of 9 hours ,the recovery rate of silver is 98 .14% .

关 键 词：饱和亚硫酸钠溶液 含银酸浸液 银 回收 

分 类 号：TF832[冶金工程—有色金属冶金]