提高氧化锌烟尘中锗回收率的生产实践  

Production Practice of Improving Germanium Recovery from ZnO Dust

作　　者：邓学文 DENG Xue-wen

机构地区：[1]四川四环锌锗科技有限公司,四川雅安625400

出　　处：《有色设备》2022年第1期91-94,共4页Nonferrous Metallurgical Equipment

摘　　要：针对锌浸出渣综合回收锗的技术难点,本文从理论和生产实践两个方面开展研究分析,通过回转窑富氧燃烧、富氧浸出、沉锗工艺优化等技术改造措施,丹宁锗品位从1.0%~1.5%提高至3%~4%,锗回收率由45%~50%提升至65%~70%。To address the technical difficulties in comprehensive recovery of germanium from zinc leaching residue,this paper conducts a theoretical and practical research and analysis.By taking technical transformation measures such as oxygen-enriched combustion in rotary kiln,oxygen-enriched leaching,and germanium precipitation process optimization,the grade of germanium precipitation with tannin has been increased from 1.0%~1.5%to 3%to 4%,and the recovery rate of germanium has been in-creased from 45%~50%to 65%~70%.

关 键 词：氧化锌 锗 富氧燃烧 富氧浸出 回收率 

分 类 号：TF813[冶金工程—有色金属冶金]