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| Effect on B2O3 replacing CaF2 of high Ti-bearing blast furnace slag |
| LIN Yin-he1， FU Ya-ling1， LUO Lin-gen2， ZHANG Li-qiang3，
ZHENG Bin4， HUANG Xiao-li5 |
| （1. Institute of Chemical Engineering， Yangtze Normal University， Chongqing 408100， China； 2. Resource Application and Alloy Materials Business Department， China Iron and Steel Research Institute Group， Beijing 100081， China； 3. School of Metallurgical Engineering， Anhui University of Technology， Ma'anshan 243000， Anhui， China； 4. School of Transportation and Automobile Engineering， Panzhihua University， Panzhihua 617000， Sichuan， China； 5. Panzhihua Technological Institute of Development and Strategy Studies， Panzhihua 617000， Sichuan， China） |
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Abstract For improving the low flowability， promoting the separation of the high Ti-bearing blast furnace slag and the hot metal and replacing the CaF2 which would pollute the environment， the influence of B2O3 and CaF2 on the apparent viscosity of the slag were investigated by SEM， viscometer， et al under the tmeperature from 1 340 to 1 475 ℃. The results showed that B2O3 had a similar effect as the CaF2 and can decrease the apparent viscosity of the high Ti-bearing blast furnace slag. When the amount of B2O3 and CaF2 was equal to 1% and the ratio of B2O3 and CaF2 was 1[∶]1， with the B2O3 increasing from 0 to 3%， the perovskite content gradually decreased， and the titaniferous augite increased， while the Ti（C，N） was almost constant.
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Received: 31 May 2018
Published: 15 February 2019
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2019, Vol. 54 
