The main method of ferroalloy production: oxygen converter method. The main equipment for the oxygen converter method uses silicon carbide powder buy converter, oxygen their way, there is a top, bottom, side and top and bottom-blown blowing method. The raw materials used in liquid high carbon ferro alloys, pure oxygen, coolant and slagging materials. The liquid alloy of high carbon into the converter, high-pressure oxygen into the furnace through the lance through blowing, relying on the heat oxidation decarbonization silicon carbide powder production release, production is carried out intermittently. Ferroalloys: ferroalloys production methods by device points. Blast furnace, submerged arc furnace method uses silicon carbide powder, silicon carbide powder EAF law, outside the furnace, vacuum resistance furnace, oxygen converter method. Divided by technological features: solvent-free and solvent. Press the heat source of: carbon thermal method, heating method, silicon thermal power, metal calorimetry.