Method for determination of manganese in silicon manganese
silicon manganese is an alloy composed of manganese, silicon, iron and a small amount of carbon and other elements. It is an iron alloy with a wide range of uses and a large output. silicon manganese is a commonly used compound deoxidizer for steelmaking, and it is also a reducing agent for the production of low-carbon ferromanganese and electro-silicothermal production of metallic manganese.
silicon manganese is an alloy composed of manganese, silicon, iron and a small amount of carbon and other elements. It is an iron alloy with a wide range of uses and a large output. Its consumption occupies the second place in electric furnace ferroalloy products. The silicon and manganese in the silicon manganese have a strong affinity with oxygen. When the silicon manganese is used in steelmaking, the deoxidation products MnSiO3 and MnSiO4 produced are melted at 1270°C and 1327°C, respectively, with low melting point, large particles, and easy to float. , Good deoxidation effect and other advantages. Under the same conditions, when manganese or silicon is used alone for deoxidation, the burning loss rate is 46% and 37%, respectively, while when silicon manganese alloy is used for deoxidation, the burning loss rate of the two is 29%. Therefore, it has been widely used in steelmaking, and its output growth rate is higher than the average growth rate of ferroalloys, and it has become an indispensable composite deoxidizer and alloy additive in the steel industry. silicon manganese with a carbon content of less than 1.9% are also semi-finished products for the production of low-carbon ferromanganese and electro-silicothermal metal manganese. In ferroalloy manufacturers, the silicon manganese used in steelmaking is usually called commercial silicon manganese , the silicon manganese used in smelting low-carbon iron is called self-use silicon manganese , and the silicon manganese used in smelting metal is called high silicon. silicon manganese . Manganese can be combined with silicon to form silicides MnSiO3, MnSiO and MnSiO3. It can be seen from the silicon manganese state diagram that the most stable silicide is silicon manganese . Due to the negative value of the free energy of manganese silicide formation, it is far greater than the negative value of the free energy of manganese carbide production. The higher the silicon content in the silicon manganese , the lower the carbon content.
