The main method of ferroalloy production: classification by heat source. Depending on the heat source is divided into carbon thermal method, heating method, silicon thermal power, metal calorimetry. Carbon calorimetry. Carbon heat source method of smelting process is mainly the burning hot coke, coke as a reducing agent industrial silicon prices, the reduction of oxide ore using this method of production is carried out continuously in a blast furnace. The main method of ferroalloy production: According to the production operation process point divided into flux method, solvent-free buying industrial silicon, no slag. There slag as well as continuous and intermittent smelting methods. Flux method. Ferroalloy smelting flux method is the use of carbonaceous materials, silicon or other metal as the reducing agent, to increase the production of slag material adjust slag composition and properties. Such as the use of alkaline slag operation, producing high-carbon ferromanganese.