Efficient Separation of Trace Muscovite within the Surface/Interface of Quartz Grains from a Hydrothermal Deposit by Oxidizing Calcination and Catalytic Pressure Leaching

  • Zhenyu Pei
  • Min LinEmail author
  • Yu Meng
  • Hang Qiu
  • Xun Zhang
  • Shaomin Lei
  • Yubiao LiEmail author
  • Andrea R. Gerson


Efficient separation of trace muscovite from the surface/interface of quartz grains was accomplished during oxidizing calcination and catalytic pressure leaching of the hydrothermal quartz. Experimental results suggest that 98.97% or more of the muscovite was separated when quartz sand was calcined at 900 °C for 5 h and then leached by hydrochloric acid and ammonium chloride solutions as substitutes for leaching agents containing fluorides. The chemical processing techniques show high selectivity in purifying quartz sand by transforming mineral muscovite into active structures during oxidizing calcination, and then dissolving the active substances during catalytic pressure leaching.


Hydrothermal quartz Trace muscovite Surface/interface Separation Oxidizing calcination Pressure leaching 



Financial support for the project was provided by the National Natural Science Foundation of China (51604205, 51774223).

Compliance with ethical standards

Conflict of Interest

The authors declare no conflict of interest.


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Copyright information

© The Society for Mining, Metallurgy & Exploration 2018

Authors and Affiliations

  1. 1.School of Resources and Environmental EngineeringWuhan University of TechnologyWuhanPeople’s Republic of China
  2. 2.Wuhan BOE Optoelectronics Technology Co., Ltd.WuhanPeople’s Republic of China
  3. 3.Jiangsu Kaida Quartz Co., Ltd.XinyiPeople’s Republic of China
  4. 4.School of Natural and Built EnvironmentsUniversity of South AustraliaMawson LakesAustralia

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