| 微波碱性焙烧—水溶含锗氧化锌烟尘回收锗 |
| |
| 引用本文： | 王万坤,王福春,梁杰.微波碱性焙烧—水溶含锗氧化锌烟尘回收锗[J].矿产保护与利用,2017,0(6):26-31. |
| |
| 作者姓名： | 王万坤 王福春 梁杰 |
| |
| 作者单位： | 1.贵州省轻金属材料制备技术重点实验室，贵州 贵阳 550003 |
| |
| 基金项目： | 国家自然科学基金项目51404081国家自然科学基金项目51504073贵州省自然科学基金项目黔科合LH[2014]7373贵州省教育厅自然科学基金项目黔教科合KY[2015]433贵州理工学院高层次人才启动基金项目XJG20141104 |
| |
| 摘 要： | 提出了微波碱性焙烧—水溶含锗氧化锌烟尘的新工艺，研究了配碱比、熟化时间、微波焙烧温度、液固比、水溶温度等对锗浸出率的影响规律。结果表明:在配碱比1 g·g-1、熟化时间5 d、微波焙烧温度400 ℃、保温时间10 min、液固比5 mL/g和水溶温度70 ℃时，锗的最佳浸出率为91.15%，与现有的常规碱性焙烧含锗氧化锌烟尘工艺对比可知，碱性焙烧温度从950~1 100 ℃降低至400 ℃，碱性焙烧保温时间由1~4 h降低至10 min，锗浸出率由80.35%提高至91.15%。
|
| 关 键 词： | 氧化锌烟尘 锗 浸出 微波焙烧 碱性焙烧 |
| 收稿时间： | 2017-09-11 |
Recovery Germanium by Microwave Alkaline Roasting-water Dissolving from Zinc Oxide Dust Bearing Germanium |
| |
| Affiliation: | 1.Key Laboratory of Light Metal Materials Processing Technology of Guizhou Provinces, Guiyang 550003, China2.School of Materials and Metallurgical Engineering, Guizhou Institute of Technology, Guiyang 550003, China |
| |
| Abstract: | Microwave alkaline roasting-water dissolving process was proposed to improve the germanium extraction. Alkali-material ratio, microwave heating temperature and leaching temperature are the significant factors for the process. By analyzing each factors systematically, the optimized conditions were obtained as follows, alkali-material ratio of 1 g·g-1, aging time of 5 day, microwave heating at 400℃, microwave alkaline roasting holding time of 10 min, liquid-solid ratio of 5 mL/g, leaching temperature at 70℃ with the germanium extraction about 91.15%. Compared with the existing methods, the alkaline roasting temperature was reduced from 950~1 100℃ to 408℃ and the alkaline roasting holding time was greatly reduced from 1~4 h to 10 min. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《矿产保护与利用》浏览原始摘要信息 |
|
点击此处可从《矿产保护与利用》下载全文 |
|
