Ferromanganese and Silicomanganese

Prices (2006). High-carbon-grade is priced US 0.85-0.90/kg and medium-grade manganese is priced US 1.2-1.4/kg. 

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Table 10. World Production of Ferromanganese and Silicomanganese, 10 t gross weight...

National Emission Standards for Hazardous Air Pollutants Publicly Owned Treatment Works National Emission Standards for Hazardous Air Pollutants for Ferroalloys Production Ferromanganese and Silicomanganese National Emission Standards for Hazardous Air Pollutants Municipal Solid Waste Landfills National Emission Standards for Hazardous Air Pollutants Manufacturing of Nutritional Yeast National Emission Standards for Hazardous Air Pollutants Organic Liquids Distribution (Non-Gasoline)... 

Manganese is mainly utilized as an alloy constituent in the steel industry as ferromanganese and silicomanganese. Pure metallic manganese is required in smaller quantities as an alloy constituent for copper, aluminum and special steels. 

SiMn = silicomanganese LCFeMn = low carbon ferromanganese LCSiMn = low carbon siUcomanganese FeMnN = nitrided ferromanganese and... 

In the past, all grades of refined ferromanganese were made by various modifications of multistep silicon reduction processes. Depending on the carbon content desired in the product, a manganese ore and lime mixture was allowed to react with the silicon in silicomanganese or low carbon silicomanganese in an open, electric-arc furnace. The equilibrium reaction is... 

The world production of ferromanganese in the year 2000 was 3780 thousand tonnes of which 75% was made in electric furnaces and 25% in blast furnaces. The worldwide production of silicomanganese is almost as large as the ferromanganese production, so in 2000 a total of 7000 thousand tonnes were produced of the two manganese alloy types. China made 27% of the total, Ukraine 14, South Africa 11, France 7, Norway 7 and Japan 6%. [27.4]. 

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