含碱高炉渣硫容量的研究

钢铁, 2007, 42(3): 14-0.

含碱高炉渣硫容量的研究

1.1. 东北大学材料与冶金学院，辽宁沈阳 110004；2. 河北理工大学冶金与能源学院，河北唐山 063009

1.1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China； 2. College of Metallurgy and Energy, Hebei Polytechnic University, Tangshan 063009, Hebei, China

关键词：高炉渣;碱金属;硫容量;气渣平衡法

Study on Sulphide Capacity of BF Slag Containing Alkali Metals

XIE Haishen , LI Fumin , MA Mingxin , L Qing

Keywords： BF slag;alkali metals;sulphide capacity;gasslag equilibrium

采用气渣平衡法测定了1500 ℃时含碱高炉渣的硫容量。研究结果表明：实验条件下，w(CaO)/w(SiO2)为0.86～1.26时，硫容量随w(CaO)/w(SiO2)的增大而增大；w(MgO)为5%～18%时，硫容量随MgO含量的增大先增大后减小，在w(MgO)为8%左右时达到最大值；w(Al2O3)为12%～18% 时，硫容量随Al2O3含量的增大是先增大后减小，在w(Al2O3)为13%左右时硫容量达到最大值；在w(CaO)/w(SiO2)为0.86、0.96、1.06和1.16的条件下，硫容量随w(K2O+Na2O)含量的增大而小幅度增大。

The sulphide capacity of B.F. slag containing alkali metals at 1500 ℃ was studied using gasslag equilibrium technique. The results reveal that, at fixed w(MgO), w(Al2O3) and w(K2O+Na2O), sulphide capacity increases with increasing of w(CaO)/w(SiO2) from 0.86 to 1.26; while w(MgO) increases from 5% to 18%, the sulphide capacity increases firstly, and decreases afterwards, it reaches its maximum when w(MgO) is about 8%; while w(Al2O3) increases from 12% to 18% at fixed w(CaO)/w(SiO2),and w(MgO), w(K2O+Na2O), the sulphide capacity increases first and decreases afterwards,reaches its maximum when Al2O3 content is about 13%; at constant w(Al2O3 )and w(MgO), when w(CaO)/w(SiO2) is 0.86,0.96,1.06 and 1.16, the sulphide capacity increases lightly with increasing of w(K2O+Na2O).

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