抄録
In order to investigate mainly a primary step of the silicothermic reaction, the behavior of the electrical resistance for the briquettes of ferro-silicon alloys and calcined dolomite was measured. The results obtained explain the following phenomena: (1) The primary reaction between silicon and calcium oxide is very fast to produce the calcium silicide phase in the briquette. (2) The addition of suitable amounts of calcium fluoride may affect the primary reaction and accelerate the overall reaction. (3) The ferro-silicon alloys with about 75 and 80% silicon are suitable for the silicothermic reaction. (4) Increasing the briquetting pressure sometimes stifled the progress of the reaction.
