Desulfurization of nickel pyrrhotite by steam in the microwave field

Desulfurization of Ni pyrrhotite by steam in the microwave field was studie d. According to the experimental data, the desulfurization rate by microwav e heating is faster than that by conventional one. The desulfurization reac tion is in a non-isothermal state and in a diffusion control because of the effect of chemical reaction heat, phase formation and intrinsic properties of materials of microwave absorbability. When the flow rate of steam was i n the range of 180 similar to 220 mL/min, the temperature and desulfurizati on rate approached to a maximum and the activation energy to a minimum.