首页 | 本学科首页   官方微博 | 高级检索  
     检索      

稀土与天青石共伴生矿焙烧及浸出过程研究
引用本文:冯兴亮,黄小卫,张国成,龙志奇,崔大立,赵娜.稀土与天青石共伴生矿焙烧及浸出过程研究[J].中国稀土学报,2012,30(1):113-119.
作者姓名:冯兴亮  黄小卫  张国成  龙志奇  崔大立  赵娜
作者单位:北京有色金属研究总院稀土材料国家工程研究中心,有研稀土新材料股份有限公司,北京100088
基金项目:国家发改委重大产业技术开发专项(发改办高技[2009]606号);国家自然科学基金项目(50934004);水体污染控制与治理科技重大专项(2009ZX07529-005)资助
摘    要:稀土与天青石共伴生多金属矿主要由稀土氟碳酸盐和天青石组成,研究了含稀土和锶的混合矿的焙烧及浸出过程,考察了焙烧温度、焙烧时间、浸出初始酸浓度、浸出温度、浸出时间等对浸出率的影响,获得优化的工艺参数为:焙烧温度500℃,焙烧时间2 h,浸出初始酸浓度1.0 mol.L-1,浸出温度35℃,浸出时间1 h,稀土浸出率达95%以上,锶浸出率小于5%,几乎不进入溶液相而保留在固相浸出渣中得以分离和富集。

关 键 词:氟碳铈矿  天青石矿  氧化焙烧  冶炼  综合回收  稀土

Metallurgical Processing of Celestite-Associated Rare Earth Ore
Feng Xingliang , Huang Xiaowei , Zhang Guocheng , Long Zhiqi , Cui Dali , Zhao Na.Metallurgical Processing of Celestite-Associated Rare Earth Ore[J].Journal of the Chinese Rare Earth Society,2012,30(1):113-119.
Authors:Feng Xingliang  Huang Xiaowei  Zhang Guocheng  Long Zhiqi  Cui Dali  Zhao Na
Institution:(National Engineering Research Center for Rare Earth Materials,General Research Institute for Nonferrous Metals,Grirem Advanced Materials Co.,Ltd.,Beijing 100088,China)
Abstract:The main constituent of a celestite-associated rare earth ore are bastnaesite and celestite.The metallurgical process of RE-Sr associated ore was studied.The raw ore was baked at a low temperature.The effect of roasting temperature,roasting time,initial acid concentration of leaching,leaching temperature and leaching time on leaching rate were investigated.The optimized parameters were as follows: roasting temperature of 500 ℃;roasting time of 2 h;initial leaching acid concentrate of 1.0 mol · L-1;leaching temperature of 35 ℃;leaching time of 1 h.The leaching rate of RE was higher than 95%.Sr was enriched in the slag.
Keywords:bastnasite concentrate  celestite  oxidation roasting  metallurgy  recovery  rare earths
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号