Paper Title:
Purifying Mechanism in the Acheson Process - A Thermodynamic Study
  Abstract

To improve the purity of SiC and the yield of high purity SiC in the conventional Acheson Process, the behaviour of metal oxide impurities (Al2O3, CaO, Fe2O3 and MgO) with/without addition of sodium chloride (NaCl) is studied with the help of FactSageTM from a thermodynamic point of view. Equilibrium phases and compositions during evaporation and gas deposition are examined in the system of SiO2 + 3C. The calculation results are compared with industrial observations and published data. Purifying mechanism is clarified for the first time since the invention of the Acheson Process in 1891.

  Info
Periodical
Materials Science Forum (Volumes 645-648)
Edited by
Anton J. Bauer, Peter Friedrichs, Michael Krieger, Gerhard Pensl, Roland Rupp and Thomas Seyller
Pages
41-44
DOI
10.4028/www.scientific.net/MSF.645-648.41
Citation
L. Y. Zhou, R. Telle, "Purifying Mechanism in the Acheson Process - A Thermodynamic Study", Materials Science Forum, Vols. 645-648, pp. 41-44, 2010
Online since
April 2010
Keywords
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Price
$32.00
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