宜昌磷矿伴生稀土元素分布规律、赋存状态及其开发利用前景分析
DOI:
作者:
作者单位:

1.中南冶金地质研究所;2.东华理工大学核资源与环境国家重点实验室

作者简介:

通讯作者:

中图分类号:

基金项目:

湖北省自然科学基金项目(编号:2019CFB551)


Analysis on the Distribution, Occurrence State and Development and utilization prospect of Associated rare earth elements in Yichang phosphate ore
Author:
Affiliation:

1.CentralSsouthSinstituteSofSmetallurgicalSgeology,Yichang;2.State Key Laboratory of Nuclear Resource and Environment,East China University of Technology

Fund Project:

Hubei Natural Science Foundation (No. 2019CFB551)

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    提要:【研究目的】湖北省宜昌磷矿中伴生有稀土元素,研究其分布规律及赋存状态,对稀土的回收利用具有重要意义,同时作为伴生矿产综合利用将成为未来稀土矿的重要来源。【研究方法】本文以含稀土磷块岩为主要研究对象,在系统取样的基础上,开展岩矿鉴定、全岩化学分析、X-RD衍射分析、扫描电镜观察、LA-ICP-MS测试等工作。【研究结果】结果表明磷块岩中稀土总量ΣREY为63.5~271.8×10-6,不同层位或不同岩性的磷块岩中稀土含量有所差异。【结论】稀土元素含量受岩性控制明显,由白云岩→白云质磷块岩→致密块状磷矿石→泥质条带磷块岩→泥岩,含量逐渐升高。微量元素反映出宜昌磷矿的古气候以干热为主,西北部略表现出温暖湿润特点;Ce异常、V/Ni和Y/Ho比值反映海水中EH条件从底部到顶部,即从Ph22成磷期到Ph13成磷期,形成水体环境逐渐氧化。宜昌磷矿中总稀土含量较低,且泥岩较磷块岩中含量高,表明吸附态稀土较类质同象稀土含量高。宜昌伴生稀土磷矿资源丰富,利用合理的技术对稀土元素进行综合回收,不仅为宜昌磷矿资源合理利用和经济发展有重要意义,也为我国稀土资源提供新的找矿方向。

    Abstract:

    Abstract:This papper is the result of mineral exploration engineering. [Objective]The Yichang phosphate deposits in Hubei Province are associated with rare earth elements (REY). Studying of REE distribution and occurrence state has great significance for the recovery and utilization and could be an important resource for rare earth ores in the future. [Methods]The REY bearing phosphorite is taken as the main research object. Based on systematic sampling, rock and ore identification, whole rock chemical analysis, X-ray diffraction analysis, scanning electron microscope observation, LA-ICP-MS analyzing are carried out. [Results]The results show that the total amount of REY in phosphorite are 63.5~271.8×10-6, the contents of REY in phosphorite of different horizons or lithology are different. [Conclusions]The contents of REY are obviously controlled by lithology, from dolomite → dolomitic phosphorite → dense massive phosphorite → argillaceous banded phosphorite → mudstone, and the contents gradually increasing. The trace elements compositions reflect that the ancient climates of the Yichang phosphate deposits were mainly dry and hot, and the northwest ones were slightly warm and humid; Ce anomaly, V/Ni and Y/Ho ratio reflect that the EH conditions of seawater were gradually oxidized from the Ph22 to the Ph13. The content of total REY in the Yichang phosphate deposits are low, and the REY contents of mudstone are higher than those in phosphate rocks, indicating that the contents of adsorbed REY are higher than the isomorphic REY. Yichang contains large amounts of REY bearing phosphate ore. The comprehensive recovery of REY in phosphate rocks is not only of great significance for rational utilization and economic development, but also provides new prospecting direction for REY resources in China.

    参考文献
    相似文献
    引证文献
引用本文
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-10-27
  • 最后修改日期:2023-03-05
  • 录用日期:2023-05-01
  • 在线发布日期:
  • 出版日期:
温馨提示:建议您使用Chrome、火狐、IE最新版本 ,当您的浏览器版本过低,可能会影响部分功能正常使用。
关闭