| Abstract: | The foaming indexes of a group of refining slag were measured. The refining slag with better foaming ability was chosen, its composition (mass fraction in %) is CaO,53.25;SiO2,17.75; MgO,9; Al2O3, 15 and CaF2, 5. The relationship between slag foaming index and physical properties of the slag was obtained by dimensional analysis, and the expression indicates that viscosity of slag is the most important factor which influences foaming index. The influence sequence of slag composition on foaming index was also obtained as follows: CaF2→MgO→Al2O3→B(CaO/SiO2). |
