Abstract:to the liquidus temperatures of blast furnace slags were experimentally studied. The base blast furnace slag composition in SiO 2 -Al 2 O 3 -CaO-MgO system is fixed at CaO/SiO 2 = 1.1, 16 wt% Al 2 O 3 and 8 wt% MgO. The liquidus temperatures of the synthetic slags have been determined by high temperature equilibration, quenching and Electron Probe X-ray Microanalysis (EPMA) techniques. It was found that within the present investigated composition ranges, the additions of minor elements to the BF slags remain i… Show more
“…The mixture was pre-melted in the furnace at 1773K for 1 hour under argon atmosphere (Coregas, Australia; purity 99.999%). The vertical tube furnace used in the present study was shown in Figure 1 and the details were described in our previous papers [24,25]. Figure 1. Schematic diagram of vertical tube furnace used in this study.…”
Titanium-bearing materials are commonly adopted for the protection of blast furnace hearth in the actual practices. In this study, the effects of smelting temperature, amount of TiO 2 addition, slag basicity and MgO content on the titanium distribution behaviours were experimentally studied using high-temperature smelting, equilibrium and quenching with EPMA techniques. The experiments results show that the increases in smelting temperature and TiO 2 content in the slag contributes to the transformation of titanium from the slag into the iron. While the increasing slag binary basicity suppresses the reduction of titanium oxides. The change of MgO content has a slight influence on the titanium distribution. The plant data from the operating blast furnace were also extracted for comparisons and the trends well agree with the present measurements.
“…The mixture was pre-melted in the furnace at 1773K for 1 hour under argon atmosphere (Coregas, Australia; purity 99.999%). The vertical tube furnace used in the present study was shown in Figure 1 and the details were described in our previous papers [24,25]. Figure 1. Schematic diagram of vertical tube furnace used in this study.…”
Titanium-bearing materials are commonly adopted for the protection of blast furnace hearth in the actual practices. In this study, the effects of smelting temperature, amount of TiO 2 addition, slag basicity and MgO content on the titanium distribution behaviours were experimentally studied using high-temperature smelting, equilibrium and quenching with EPMA techniques. The experiments results show that the increases in smelting temperature and TiO 2 content in the slag contributes to the transformation of titanium from the slag into the iron. While the increasing slag binary basicity suppresses the reduction of titanium oxides. The change of MgO content has a slight influence on the titanium distribution. The plant data from the operating blast furnace were also extracted for comparisons and the trends well agree with the present measurements.
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