摘要
研究在硫酸锌溶液中用萃取法提取锗 ,萃取剂为 7815 (氧肟酸 ) ,稀释剂为磺化煤油 ,添加剂为T试剂 ,反萃剂为NaOH ,原料液为云南会泽铅锌矿硫化锌高温、高酸、高铁浸出溶液 ;工艺就萃取体系的选择 ,金属的萃取平衡 ,工艺参数的确定 ,工艺流程的设计以及工艺流程的串级实验等进行了深入研究 ,取得了锗萃取率大于 96 % ,反萃率大于 97% ,锗精矿含锗大于 30
This process is concerned with solvent extraction of Ge from zinc sulfate solution with 7815 (hydroxamic acid as) extractant, sulfonated kerosene as diluent, T reagent as additive and NaOH as re extractant. The feed liquid is the leachate of Yunnan Huize lead zinc ore leached at high temperature by strong sulphuric acid and ferric solution. The temperature is about 70～80 ℃. The concentration of sulphuric acid and ferric inos are 90 g/L and 10～15 g/L respectively. Selection of extraction system, metal exaction balance, process parameters, process design and the overall process experiment have been investigated. The Ge extraction is higher than 96 %,are re extraction is higher than 97 %, Ge conlent in the germanium concentrate,which is ohtained by nentralization is higher than 30 %. [
出处
《中国工程科学》
2001年第12期58-67,共10页
Strategic Study of CAE
基金
清华大学与云南省省校合作项目
