Applications of two electric arc plasma torches for the beneficiation of natural quartz

  • Yuri-Mikhailovich Grishin
  • Long MiaoEmail author
  • Lev-Alekseevich Borisov
  • Nikolay-Mikhailovich Serykh
  • Alexey-Yurievich Kulagin


Experimental beneficiation processes of quartz concentrate in arc plasma torches of two different types and electric powers were studied. An emission scanning electron microscope and a universal laser analyzer were used to investigate the structures as well as the size distributions of grains and microparticles. Inductively coupled plasma-mass spectrometry was used to determine the chemical compositions of nonstructural solid-phase mineral impurities in quartz concentrate. Results related to the modified grains’ structure and size distribution, the compositions of impurities, and the gas-liquid inclusions in the quartz concentrate were investigated. The total impurities concentrations in the processed grains were found to satisfy the IOTA-STD standard (industry standard for grading high quality fused quartz products). The optimal condition (i.e., the optimal specific plasma enthalpy) for the production of high-purity quartz in arc plasma torches was found to depend on the geological-genetic type and the structural and textural features (i.e., chemical composition and gas-liquid inclusions) of the quartz concentrate.


low-temperature plasma beneficiation high purity quartz arc plasma torch IOTA-STD standard 


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© University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Yuri-Mikhailovich Grishin
    • 1
  • Long Miao
    • 1
    Email author
  • Lev-Alekseevich Borisov
    • 2
  • Nikolay-Mikhailovich Serykh
    • 2
  • Alexey-Yurievich Kulagin
    • 1
  1. 1.Department of Thermal physicsBauman Moscow State Technical UniversityMoscowRussia
  2. 2.Federal State Unitary Enterprise TsentrkvartsMoscowRussia

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