Abstract
The desulphurization velocity of molten iron saturated with carbon by rotating calcium carbide cylinder has been investigated in temperature from 1250° to 1450°C.
Results obtained are as follows:
1) The mass transfer coefficient for the desulphurization reaction may be written by the following equation,
JD=k/U (SC) 0.28=0.038 (Re) -0.49
which is quite similar to the mass transfer coefficients for the dissolution of rotating benzoic acid cylinder into the water.
2) The activation energy for the desulphurization reaction obtained from this experiments was 13.4±7.4 kcal/mol. This agrees well with 6.5-18.4 kcal/mol calculated from the equation of mass transfer coefficient using activation energies of sulphur diffusion and viscosity of molten iron saturated with carbon.
