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Use of Alumina Production Waste Red Mud During Molten Sulfur-Containing Slag Granulation

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Metallurgist Aims and scope

Abstract

Versions are provided for the use of red mud (RM) as a substitute for expensive lime and limestone used for cleaning industrial gases with toxic sulfur compounds emitted into the atmosphere in large quantities. Laboratory and industrial tests reveal the absorption capacity of RM for cleaning gases from sulfur discharged into the atmosphere by furnace thermal power stations, sintering machines, and steel furnaces. It is established that the hydrogen sulfide content in the atmosphere during granulation of slag with the participation of RM is reduced by a factor of ten. In addition, the ecological efficiency of air cleaning from sulfur-containing gases released in granulation areas from molten blast furnace slag is demonstrated. Improvement of technological properties of metallurgical granulated slag that will promote a high demand for this material in the construction industry is revealed. A reduction in the risk of new hazards in storage areas and RM in sludge storage will resolve environmental problems of these regions.

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Authors and Affiliations

  1. St. Petersburg Mining University, St. Petersburg, Russia

    A. B. Lebedev, V. A. Utkov & V. Yu. Bazhin

Authors
  1. A. B. Lebedev
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  2. V. A. Utkov
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  3. V. Yu. Bazhin
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Correspondence to A. B. Lebedev.

Additional information

Translated from Metallurg, Vol. 63, No. 7, pp. 53–56, July, 2019.

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Lebedev, A.B., Utkov, V.A. & Bazhin, V.Y. Use of Alumina Production Waste Red Mud During Molten Sulfur-Containing Slag Granulation. Metallurgist 63, 727–732 (2019). https://doi.org/10.1007/s11015-019-00882-z

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  • DOI: https://doi.org/10.1007/s11015-019-00882-z

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