文献类型：期刊文献

英文题名：Microwave alkaline roasting-water dissolving process for germanium extraction from zinc oxide dust and its analysis by response surface methodology (RSM)

作者：Wang, Wankun Wang, Fuchun Lu, Fanghai

第一作者：Wang, Wankun;王万坤

通信作者：Wang, FC[1];Wang, FC[2]|[144403049e06275085f50]王福春;

机构：[1]Key Lab Light Met Mat Proc Technol Guizhou Prov, Guiyang 550003, Guizhou, Peoples R China;[2]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China

第一机构：Key Lab Light Met Mat Proc Technol Guizhou Prov, Guiyang 550003, Guizhou, Peoples R China

通信机构：corresponding author), Key Lab Light Met Mat Proc Technol Guizhou Prov, Guiyang 550003, Guizhou, Peoples R China;corresponding author), Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院材料与冶金工程学院;贵州理工学院;

年份：2018

卷号：115

期号：2

外文期刊名：METALLURGICAL RESEARCH & TECHNOLOGY

收录：;EI(收录号：20175004543147);Scopus(收录号：2-s2.0-85037739771);WOS:【SCI-EXPANDED(收录号:WOS:000417333500001)】；

基金：This work was supported by the National Natural Science Foundation of China (51404081, 51504073, 51664010), the Joint Research Program of the Science and Technology Department of Guizhou Province (LH [2014] 7373), the Research Program of the Education Department of Guizhou Province (KY [2015] 433), and the Research Program of Talented Scholars of Guizhou Institute of Technology (XJG20141104).

语种：英文

外文关键词：zinc oxide dust; germanium; microwave alkaline roasting; water leaching; response surface methodology

摘要：Microwave alkaline roasting-water dissolving process was proposed to improve the germanium (Ge) extraction from zinc oxide (ZnO) dust. The effects of important parameters were investigated and the process conditions were optimized using response surface methodology (RSM). The Ge extraction is consistent with the linear polynomial model type. Alkali-material ratio, microwave heating temperature and leaching temperature are the significant factors for this process. The optimized conditions are obtained as follows, alkali-material ratio of 0.9 kg/kg, aging time of 1.12 day, microwave heating at 658 K for 10 min, liquid solid ratio of 4.31 L/kg, leaching temperature at 330 K, leaching time of 47min with the Ge extraction about 99.38%. ft is in consistence with the predictive value of 99.31%. Compared to the existed alkaline roasting process heated by electric furnace in literature, the alkaline roasting temperature and holding time, ft shows a good prospect on leaching Ge from ZnO dust with microwave alkaline roasting-water dissolving process.