Ferroalloys: ferroalloys production methods by device points. Refining blast furnace Deoxidants price, submerged arc furnace Deoxidants refining plant, electric arc furnace method, a furnace external refining furnace Deoxidants, 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. Ferroalloys: simply buying Deoxidants refining furnace, blast furnace blast furnace method is the use of high temperature and reducing atmosphere is made of the alloy ferroalloy ore reduction. In the blast furnace ferroalloys mainly carbon ferromanganese; the furnace with energy as a heat source, carbon is used as a reducing agent, and the reducing power of carbon is enhanced with increasing temperature, it is much more difficult to restore oxides such as CaO, Al2O3, rare earth oxides, etc. can restore them in reducing electric furnace.