Products Description
Ferromanganese an iron alloy of manganese and iron. Main categories: high carbon ferromanganese (carbon content is 7%), medium carbon ferromanganese (carbon content 1.0~1.5%), low carbon ferromanganese (carbon content 0.5%), metal manganese, mirror iron, silicon manganese alloy.
Smelting process
Blast furnace smelting
Ferromanganese blast furnaces are generally used below 1000 meters, and the equipment and production process are roughly the same as that of ironmaking blast furnaces.
In the process of falling from the top of the furnace, high-priced manganese oxide (MnO2, Mn2O3, Mn3O4) is gradually reduced to MnO by CO as the temperature rises.
Electric furnace smelting
Reduction smelting of ferromanganese has two kinds of flux method (also known as low manganese slag method) and no flux method (high manganese slag method).
The principle of the flux method is the same as that of blast furnace smelting, except that electric energy replaces the coke used for heating.
Stock and Factory
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