Influence of Cr2O3 and Basicity on Viscosity of Ti-Bearing Blast Furnace Slag

  • Guibao QiuEmail author
  • Jian Wang
  • Shiyuan Liu
  • Qingjuan Li
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


The influence of Cr2O3 and basicity on the viscosity of CaO–SiO2-15 wt% Al2O3-9 wt% MgO-22 wt% TiO2–Cr2O3 slag was investigated in the temperature range of 1673–1773 K. The viscosity decreased with increasing basicity at fixed content of Cr2O3 due to the depolymerization of silicon structure. At a fixed content of basicity, the viscosity decreased with increasing Cr2O3 when the mass percentage of Cr2O3 was below 1%. Different models were also used to predict the effect of Cr2O3 on the viscosity of blast furnace slag, and the results show that the optical basicity model agrees well with the experimental values. With the initial addition of Cr2O3 content, the slag melting temperature increased from 1660 to 1673 K. When the basicity increased from 1.0 to 1.2, the slag melting temperature increased from 1655 to 1720 K.


Viscosity Cr2O3 Basicity Ti-bearing slag 



The work described in this paper was supported by a grant from the Natural Science Foundation of China (Project no. 51674055).


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Guibao Qiu
    • 1
    Email author
  • Jian Wang
    • 1
  • Shiyuan Liu
    • 1
  • Qingjuan Li
    • 1
  1. 1.College of Materials Science & Engineering, Chongqing UniversityChongqingChina

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