鄂东南付家山脉石英矿杂质特征及其用作高纯石英原料的潜力
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1.长江大学地球物理与石油资源学院;2.中国地质科学院矿产资源研究所

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中央级公益性科研院所基本科研业务费(KK2110,KK2005)


Characteristics of Impurities in Fujiashan Vein Quartz Deposit, Southeastern Hubei Province and its High Purity Quartz Potential
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1.Yangtze University,College of Geophysics and Petroleum Resources,Wuhan,Hubei;2.MNR Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,CAGS

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    摘要:

    高纯石英作为战略性矿产资源之一,广泛应用于集成电路、半导体芯片、太阳能等高新技术产业中,但是能够生产高纯石英的原料矿床极为稀缺,我国尤为紧缺高纯石英原料矿。鄂东南地区是湖北省脉石英矿床的主要分布区。本文针对鄂东南付家山脉石英矿床,通过光学显微镜、扫描电子显微镜观察石英矿石的杂质元素赋存状态,使用电感耦合等离子发射光谱法(ICP-OES)对原矿进行微量元素分析,旨在获得付家山脉石英矿床的杂质元素特征,评价矿床用作高纯石英原料的潜力。结果表明,付家山脉石英矿石SiO2含量大于99.95 wt%,杂质元素主要为Al、K、Fe、Ti、Ca等元素,脉石矿物主要有白云母、钾长石、铁氧化物等,流体包裹体较为发育。杂质元素分析结果表明,付家山脉石英原矿质量达到低端高纯石英标准,经传统工艺提纯后,可能具有生产中高端高纯石英的潜力。

    Abstract:

    High-purity quartz is a strategic mineral material and widely used in integrated circuits, semiconductor chips, solar energy and other high-tech industries. However, raw quartz deposits that can be used to produce high-purity quartz are extremely scarce, and China is particularly short of high-purity quartz deposits. Southeastern Hubei is the main distribution area of vein quartz deposits in Hubei Province. In this study, impurities characteristics of raw quartz in Fujiashan quartz deposit from southeastern Hubei was examined by optical microscope and scanning electron microscope methods. Trace element concentrations of the raw quartz material were analyzed by solution ICP-OES technique. The aim of this effort is to obtain the characteristics of impurity elements in Fujiashan quartz deposit and its high purity quartz potential. The results show that the average content of SiO2 in the raw quartz is more than 99.95 wt%, and the impurities mainly occur in gangue minerals such as muscovite, potassium feldspar and iron oxide, lattice-bound form and fluid inclusions. Dominate elements include Al, K, Fe, Ti and Ca. The results show that the quality of Fujiashan raw quartz meet the application requirement of low-end high purity quartz, and it has the potential of producing middle-to-high end high purity quartz after traditional purification.

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  • 收稿日期:2022-03-18
  • 最后修改日期:2022-09-05
  • 录用日期:2022-11-04
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