酸性硫脲浸金液中金的富集研究  

Study on Enrichment of Gold in Acidic Thiourea Leaching Liquor

作　　者：胡小玲[1] 张生[1] 管萍[1] 张新丽[1] 

机构地区：[1]西北工业大学化学工程系,西安710072

出　　处：《化工进展》2004年第3期292-294,共3页Chemical Industry and Engineering Progress

摘　　要：研究了D 0 72大孔强酸性阳离子交换树脂从硫脲 [Tu =CS(NH2 ) 2 ]浸金液中吸附Au(Tu) + 2 的性能和机理。结果表明 :在 pH =2 .0时 ,树脂对Au(Tu) + 2 有优良的吸附性能 ,1 gD 0 72大孔强酸性阳离子交换树脂金的交换容量为 78.95mg ,吸附的硫脲金可用乙醇 -硫酸水溶液洗脱 ,洗脱率可达 96 .5 %。D 0 72树脂对Au(Tu) +The sorption and exchange properties of thiourea gold complex by D 072 macroporous strong acidic resin from acid solution have been investigated. The results show that the resin can effectively adsorb Au(Tu) + 2 ions (Tu=thiourea) at pH=2.0, and the static saturated adsorption capacity of resin can reach 78.95?mg/g -resin . The Au(Tu) + 2adsorbed can be qualitatively eluted with alcohol-sulfuric acid solution,elution rate of gold is 96.5%.

关 键 词：硫脲浸金液 树脂 Au(Tu)2^+ PH值 乙醇-硫酸溶液 洗脱率 吸附模型 湿法冶金工艺 

分 类 号：TF111.3[冶金工程—冶金物理化学] TF831