从铜沉淀渣中回收硒、铜、碲试验研究

Research on Recovering of Copper,Selenium and Tellurium From Copper Precipitation Slag

研究了采用硫酸化焙烧蒸硒、水浸分铜、酸浸分碲工艺,从铜沉淀渣中分步回收硒、铜、碲。试验结果表明,适宜条件下,硒、铜、碲回收率分别为90.21%、96.32%、80.82%,可实现硒、铜、碲的分步回收。工艺操作简单,金属产品品位较高。

The process of evaporating selenium by sulfatizing roasting-leaching copper using waterleaching tellurium using hydrochloric acid from copper precipitation slag was researched.The results show that under the suitable conditions,recovery of selenium,copper,tellurium are 90.21%,96.32%,80.82%,respectively,achieving recovery of selenium,copper,tellurium step by step.The process has advantage of easy operation and high grade of metal products.