| 微山稀土精矿经固氟后采用氯化铵法回收稀土 |
| |
| 引用本文： | 时文中,朱国才,张志庚,王竞研,池汝安.微山稀土精矿经固氟后采用氯化铵法回收稀土[J].过程工程学报,2002,2(6):523-528. |
| |
| 作者姓名： | 时文中 朱国才 张志庚 王竞研 池汝安 |
| |
| 作者单位： | 1. 清华大学核能技术设计研究院,北京,102201;驻马店师范高等专科学校化学系,河南,驻马店,463000
2. 清华大学核能技术设计研究院,北京,102201 |
| |
| 基金项目： | 国家杰出青年科学基金资助项目(编号: 59725408)，国家自然科学基金资助项目(编号: 59804004) |
| |
| 摘 要： | 微山稀土精矿经固氟后，采用氯化铵法回收稀土. 通过单因素条件实验确定了矿物固氟和氯化焙烧的较宜条件：固氟温度为550℃，固氟剂用量与精矿质量比为1:20，固氟焙烧时间50 min; 氯化剂用量与精矿质量比为1.2:1，氯化焙烧温度480℃，氯化时间60 min. 在较宜条件下，稀土的浸出回收率在87.8%以上. 利用X射线衍射探讨了固氟过程中可能发生的反应.
|
| 关 键 词： | 稀土 精矿 固氟 氯化铵焙烧法 |
| 文章编号： | 1009-606X(2002)06-0523-06 |
| 修稿时间： | 2002年6月10日 |
Recovery of RE from Weishan Rare Earth Concentrate with Chlorination Roasting after Fluorine-fixing Treatment |
| |
| SHI Wen-zhong,ZHU Guo-cai,ZHANG Zhi-geng,WANG Jing-yan,CHI Ru-an.Recovery of RE from Weishan Rare Earth Concentrate with Chlorination Roasting after Fluorine-fixing Treatment[J].Chinese Journal of Process Engineering,2002,2(6):523-528. |
| |
| Authors: | SHI Wen-zhong ZHU Guo-cai ZHANG Zhi-geng WANG Jing-yan CHI Ru-an |
| |
| Affiliation: | SHI Wen-zhong1,2,ZHU Guo-cai1,ZHANG Zhi-geng1,WANG Jing-yan1,CHI Ru-an1 |
| |
| Abstract: | A process for recovery of RE from the Weishan rare earth concentrate was developed by incorporation of fluorine-fixing and RE concentrate chlorinating with ammonium chloride. The suitable conditions were determined as follows: Fluorine-fixing time of 50 min, MgO dosage mMgO/more=1:20 at 550oC. Chlorinating the fluorine-fixed calcine by 60 min, with NH4Cl dosage mNH4Cl/more=1.2:1 at 480oC, the leaching recovery of RE reaches 87.8% under the above conditions. The possible reactions in the fluorine-fixing process were discussed with the X-ray diffraction spectrum. |
| |
| Keywords: | rare earth concentrate fluorine fixing NH4Cl roasting treatment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《过程工程学报》浏览原始摘要信息 |
|
点击此处可从《过程工程学报》下载全文 |
|
