| Popis: |
Dissolution kinetics of alumina into a new type CaO-Al 2 O 3 mold slag was investigated by employing the rotating cylinder method. The results shows that the alumina dissolution was controlled by the mass transfer in the molten slag; the diffusion coefficient D=4.2×10 -5 mm 2 /s under 1400°C; the activation energy of dissolution process was 213.8 Kj/mo1, this energy was higher than that of traditional mold slag; the ability of the new mold slag to absorb Al 2 O 3 was weaker than that of traditional mold slag. |
