Effects of MgO/Al_(2)O_(3)and CaO/SiO_(2)ratios on viscosity of high titaniumbearing blast furnace slag  

作　　者：Hua-bin Gao Jue Tang Man-sheng Chu Shu-yu Zhong Zheng-gen Liu 

机构地区：[1]School of Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China [2]Liaoning Province Engineering Research Center for Technologies of Low-Carbon Steelmaking,Northeastern University,Shenyang 110819,Liaoning,China [3]State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,Liaoning,China

出　　处：《Journal of Iron and Steel Research International》2023年第3期456-464,共9页

基　　金：The authors were specially grateful to the National Natural Science Foundation of China(Grant No.51904063);the Fundamental Research Funds for the Central Universities(N2025023).

摘　　要：The effects of MgO/Al_(2)O_(3)and CaO/SiO_(2)ratios on the viscosity,break-point temperature,and viscous activation energy of a high titanium-bearing slag were studied.The results showed that both the viscosity and the break-point temperature of the slag decreased with the MgO/Al_(2)O_(3)ratio increasing from 0.50 to 0.65,the viscous activation energy decreased gradually,and the thermal stability became better.In addition,with an increase in CaO/SiO_(2)ratio from 1.12 to 1.22,the main viscous units in the slag depolymerized and the viscosity of slag decreased.However,the break-point temperature of slag showed an increasing tendency.The viscous activation energy decreased gradually and the thermal stability became better.The basic phase in the experimental high titanium-bearing slag was pyroxene,and its amount increased with increasing the MgO/Al_(2)O_(3)ratio while decreased with increasing the CaO/SiO_(2)ratio.

关 键 词：High titanium-bearing slag VISCOSITY Viscous activation energy Break-point temperature Phase composition 

分 类 号：X758[环境科学与工程—环境工程]