Abstract
The reaction rates were measured for the desulphurization of molten Fe-S and Fe-S-C alloys with hydrogen gas by flow method. The following results were found.
As the rates were proportional to the sulphur content and its logarithm linearly changed to reaction time, the reaction was found to be of the first order with respect to sulphur.
The rates of desulphurization were influenced by the content of sulphur and carbon, and that tendency corresponded with the activity of sulphur in the melt.
The rate constant was much larger than that of oxygen gas and smaller than that of the lime slag.
