The content of CaF_2 and alkali metal(Na_2O+K_2O) in the special slag of Baotou Iron and Steel(Group)Company was close to 2.52% and 0.19% respectively,which belongs to the slag of low fluorine and low alkali metal.

• 包钢特殊渣中的CaF2和碱金属(N2O+K2O)的质量分数分别接近于2.；52%25和0