Green Processing and Synthesis (Nov 2020)

Sustainable utilization of a converter slagging agent prepared by converter precipitator dust and oxide scale

  • Liu Bailong,
  • Zhang Zhaohui,
  • Sun Longxin,
  • Yang Zhenghua,
  • Feng Lu

DOI
https://doi.org/10.1515/gps-2020-0063
Journal volume & issue
Vol. 9, no. 1
pp. 664 – 674

Abstract

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A converter slagging agent was prepared using converter precipitator dust and oxide scale as raw materials and bentonite, calcium oxide, and soluble glass as binders. The influence of different binders on the strength of the converter slagging agent was studied. The optimum ratio of bentonite, calcium oxide, and sodium silicate was determined by orthogonal experiments. The chemical composition, strength, moisture content, alkalinity, and other indicators of the prepared converter slagging agent met the requirements for converter smelting. The drop intensity of the green pellet was 3.7 times, and the compressive strength of the dry pellet could reach 988.72 N/m2. Therefore, the sustainable utilization of converter precipitator dust and oxide scale could be realized by the preparation of a converter slagging agent.

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