| 包头稀土精矿浓硫酸低温焙烧工艺技术研究 |
| |
| 引用本文： | 马莹,许延辉,常叔,乔军,王晶晶,王宝荣. 包头稀土精矿浓硫酸低温焙烧工艺技术研究[J]. 稀土, 2010, 31(2) |
| |
| 作者姓名： | 马莹 许延辉 常叔 乔军 王晶晶 王宝荣 |
| |
| 作者单位： | 包头稀土研究院,内蒙古,包头,014030;稀土冶金及功能材料国家工程研究中心,内蒙古,包头,014030 |
| |
| 基金项目： | 科技部"十一五"支撑计划项目 |
| |
| 摘 要： | 采用浓硫酸低温动态焙烧方式分解包头稀土精矿,考察了焙烧温度、矿酸比、回转窑倾角、转速等因素对稀土精矿中稀土和钍分解率的影响。结果表明,包头稀土精矿浓硫酸低温焙烧工艺可行,稀土和钍的浸出率均大于95%,水浸渣的放射性总比放达到国家非放射性渣排放标准。具有推广应用前景。
|
| 关 键 词： | 稀土精矿 浓硫酸 焙烧 低温 |
Study on the Decomposition of Baotou Rare Earth Concentrate |
| |
| MA Ying,,XU Yan-hui,CHANG Shu,QIAO Jun,WANG Jing-jing,WANG Bao-rong. Study on the Decomposition of Baotou Rare Earth Concentrate[J]. Chinese Rare Earths, 2010, 31(2) |
| |
| Authors: | MA Ying XU Yan-hui CHANG Shu QIAO Jun WANG Jing-jing WANG Bao-rong |
| |
| Affiliation: | MA Ying1,2,XU Yan-hui1,CHANG Shu1,QIAO Jun1,WANG Jing-jing1,WANG Bao-rong1,2(1.Baotou Research Institute of Rare Earths,Baotou 014030,China,2.National Engineering Center of Rare Earth Metallurgy , Functional Materials,China) |
| |
| Abstract: | Baotou rare earth concentrate was docomposed in rotating calcinator with concentrated sulphuric acid at lower temperature.The influence factors were investigated such as calcinating temperature,the rate of acid to concentrate,the obliquity of calcinator and the speed of calcinator,etc.The results showed that the new process of calcinating Baotou rare earth concentrate with concentrated sulphuric acid at lower temperature is workable.The leaching rates of rare earth and thorium are both higher than 95%,and t... |
| |
| Keywords: | rare earth concentrate concentrated sulphuric acid calcinate lower temperature |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
