滇西陇川某地稀土矿稀土元素赋存状态研究
Occurrence States State of Rare Earth Elements in a REE Deposit in Longchuan,Western Yunnan
潘泽伟 1杨清标 2罗建宏 2苏肖宇 2唐忠 1余海军 2卢玉喜 2明添学 2孙鹏 3朱多录2
作者信息
- 1. 云南省地质调查院,云南昆明 650216;昆明理工大学国土资源工程学院,云南昆明 650093;自然资源部三江成矿作用及资源勘查利用重点实验室,云南昆明 650051
- 2. 云南省地质调查院,云南昆明 650216;自然资源部三江成矿作用及资源勘查利用重点实验室,云南昆明 650051
- 3. 云南省国土资源规划设计研究院,云南昆明 650216
- 折叠
摘要
滇西陇川某地稀土矿为近年新发现的稀土矿床,为确定该稀土矿在现代技术条件下能否实施工业开采,开展了矿石稀土元素的赋存状态研究.通过化学物相分析,包括离子相、胶态沉积相、矿物相和水溶相四个相态进行逐级分离,结合X射线粉晶衍射,查明了滇西陇川某地稀土矿中稀土元素的赋存状态.结果表明,该稀土矿中稀土元素赋存状态主要以离子相为主,全相稀土元素的富集和离子相稀土元素的富集相吻合,结合该区风化壳矿物组成特征,认为黏土矿物(高岭石、伊利石)是其稀土元素主要的载体矿物,稀土元素呈离子交换相吸附于黏土矿物中富集.解决了该矿床稀土元素赋存状态问题,对丰富和完善该区稀土元素次生富集机制具有重要意义,并为后续稀土资源综合利用提供依据.
Abstract
A rare earth mine in Longchuan,western Yunnan,is a newly discovered rare earth mine in recent years.In order to determine whether the rare earth mine can be deposited industrially under modern technical conditions,the occurrence state of rare earth elements in rare earth ores was studied.Through chemical phase analysis,including ionic phase,colloidal sedimentary phase,mineral phase and water-soluble phase,and com-bined with X-ray powder diffraction,the occurrence state of rare earth elements in a rare earth mine was investi-gated.The results show that the occurrence state of rare earth elements in the rare earth ore is mainly ionic phase,and the enrichment of full phase rare earth elements is consistent with that of ionic phase rare earth ele-ments.Combined with the composition characteristics of weathered crust minerals in this area,it is considered that clay minerals(kaolinite and illite)are the main carrier minerals of rare earth elements,and rare earth ele-ments are adsorbed in clay minerals as ion exchange phase to enrich,which is of great significance to enrich and improve the mechanism of secondary enrichment of rare earth elements in the area,and provides a basis for the subsequent comprehensive utilization of rare earth resources.
关键词
滇西/离子吸附型稀土矿/赋存状态/稀土元素Key words
Western Yunnan/ion adsorption type rare earth ore/occurrence state/rare earth element引用本文复制引用
出版年
2024
NETL
NSTL
万方数据