The main method of ferroalloy production: classification by operating methods and processes. No slag. No slag smelting iron alloy is the use of a carbonaceous reductant, silica or reconstituted alloy as raw materials, continuous smelting reduction furnace, products such as ferrosilicon, industrial silicon, silicon-chromium alloy. There slag. There ferroalloy smelting slag in the reduction furnace or electric furnace refining, choose a reasonable residue type system and alkalinity production ferroalloys, iron slag than by its different varieties and material condition of the corresponding use of other factors Buying Si-Ba calcium deoxidizer generally 0.8 to 1.5. Ferroalloy basic purposes: basic classification. Ferroalloy variety, classification method is also more generally classified according to the following methods: Classification by ferroalloy main elements, mainly calcium silicon barium aluminosilicate deoxidizer, manganese, chromium, calcium, barium aluminosilicate Deoxidizer plant, vanadium, titanium, tungsten aluminosilicate barium calcium Deoxidizer price and molybdenum series ferroalloy. Classification according to the carbon content of the alloy, high-carbon, medium carbon, low-carbon, low carbon, ultrafine carbon and other varieties.