从硫酸锌溶液中萃取提锗  

Extraction of Germanium from Zinc Sulphate Solution

作　　者：陈世明 李学全 黄华堂 刘韬 张雄飞 杨岱茜 王侃[2] 黄艳芬[2] 包福毅[3] 方军[3] 朱大和[3] 

机构地区：[1]云南省冶金研究设计院,云南昆明650031 [2]云南会泽铅锌矿,云南会泽654200 [3]清华大学核能技术设计研究院,北京100084

出　　处：《云南冶金》2002年第3期101-105,共5页Yunnan Metallurgy

摘　　要：从硫酸锌溶液中萃取提锗的水相体系组成复杂 ,主金属锌含量高 ,待分离回收的金属锗含量极低 ,杂质Fe,Mn ,SiO2 高。在诸多有机相体系中选择以 7815 +添加剂 +煤油为有机相 ,NaOH为反萃剂进行工艺研究 ,完成了扩大和半工业试验 ,从硫酸锌溶液至锗精矿锗的回收率大于 94 % ,锗的直收率约 80 % ,锗精矿含Ge 30 %左右。离心萃取器是有效的萃取设备。萃取提锗后的萃余液经除油处理后 ,对锌电解工艺无不良影响。The water phase for Ge extraction from ZnSO 4 is complex in composition with high zinc content and very low germanium content,and it is rich in impurities such as Fe,Mn,SiO 2.In extraction,7815+additive+kerosene is used as organic phase,and NaOH is used as back-extracting agent.The enlarged lab test and pilot experiment shows the recovery of germanium from ZnSO 4 solution to Ge concentrate(～30% Ge)is more than 94%,direct recovery of Ge is around 80%.The centrifugal extractor is proved to be an effective equipment.After deoiling,the remainder solution can be used for zinc electro-winning without negative effects.

关 键 词：硫酸锌溶液 萃取 锗 T试剂 离心萃取器 

分 类 号：TN304.11[电子电信—物理电子学]