Abstract
Viscosities of industrial lead blast furnace slags were experimentally determined as functions of temperature and composition. A Brookfield viscometer, equipped with alumina stirring rods and crucibles, was used in this study. The experiments were carried out in argon atmosphere at 1423 to 1523 K with the addition of up to 5% (by weight) of each of the compounds FeO, MgO and Si02 to the slags. The experimental results showed that the slag viscosities of two industrial slags decreased with increasing temperature, the addition of FeO decreased the slag viscosities and the addition of MgO and Si02 increased the slag viscosities. For a successful lead-smelter production operation (i.e., one with less entrained lead and an easy-to-skim slag from a lead blast furnace), the above slag compositions with the addition of FeO are recommended.
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Yen, J.Y., Mantha, D., Evrard, L. et al. Effect of composition and temperature on viscosities of lead blast furnace slags. Mining, Metallurgy & Exploration 23, 165–170 (2006). https://doi.org/10.1007/BF03403204
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DOI: https://doi.org/10.1007/BF03403204