从铜阳极泥中回收粗硒的工艺改进和生产实践  

Technology Improvement and Production Practice on Crude Selenium Recycling from Copper Anode Slime

作　　者：李洪江 杨向辉 刘艳敏 刘丽梅 雷朔 LI Hong-jiang;YANG Xiang-hui;LIU Yan-ming;LIU Li-mei;LEI Shuo(Chifeng Yuntong Non-ferrous Metal Co.,Ltd.,Chifeng,Inner Mongolia 024000,China)

机构地区：[1]赤峰云铜有色金属有限公司,内蒙古赤峰024000

出　　处：《云南冶金》2023年第2期76-80,共5页Yunnan Metallurgy

摘　　要：针对回收硒旧工艺存在的二氧化硫利用率低、处理成本高、粗硒品位低、回收率低等问题,将原设计采用的还原剂由瓶装液体二氧化硫改为制酸二氧化硫烟气,未参加反应的二氧化硫烟气去往制酸系统部分进行改进。改进后的方案得到的粗硒品位为45%~99%。Sulfur dioxide was used for old process of selenium recycling,it has the following problems that low utilization rate,high processing cost,low grade of crude selenium,low recovery rate and so on;the bottled liquid sulfur dioxide adopted by initial design was changed to sulfur dioxide flue gas for acid production,the unreacted sulfur dioxide flue gas was delivered to acid making system for improvement.The grade of crude selenium was 45%~99%after improvement.

关 键 词：铜阳极泥 粗硒 工艺改进 回收率 

分 类 号：TF843.5[冶金工程—有色金属冶金]