What kind of ore smelting high carbon ferromanganese
High carbon ferromanganese manufacturers in smelting high carbon ferromanganese, cannot do without the use of ore, the following high carbon ferromanganese suppliers with you to understand. Now there are five kinds of ores commonly used in smelting high-carbon ferromanganese, which are:
1) Hard manganese ore: the composition is aqueous manganese oxide. The molecular formula is RMNO ·1MnO2· Mh2O. The manganese content is about 45 ~ 60%. It often contains iron, calcium, copper, silicon and other impurities. It is lumpy, grape-like, bell emulsion, dendritic or earthy aggregate with smooth surface. Hardness 5 ~ 6, specific gravity 3.7 ~ 4.7. Semi-metallic luster to dull. The color is dark gray to iron black. The streaks are light dark brown and opaque. Brittle, smooth fracture or shell - like.
2) Pyrolusite: chemical composition is MnO2, the manganese content can reach 63.2%, often contains a small amount of water and silica, iron oxide and hard manganese ore. Usually columnar crystals, but also acicular, fibrous, granular, etc. Hardness 1 ~ 2.5, specific gravity 4.7 ~ 4.8. Metallic luster or dull. Colors can be iron black or light blue black. The stripes are black. Sexual soft can contaminate fingers, opacity.
3) Brown-manganese ore: Mn2O3 contains 69.9% manganese. Tetragonal crystal system, crystal is conical or pseudoctahedral crystal shape, usually dense block or granular aggregate, color brown to steel gray, stripe dark brown, fresh port is uneven, semi metallic luster, relative density 4.72-4.83, hardness of 6~6.5, with high hardness, stripe brown and other similar black manganese minerals.
4) water manganese ore: water manganese ore MnO (OH) chemical composition is mainly: MnO 40.0%, MnO2 49.4%, H2O 10.2%. It often contains SiO2, Fe2O3, and trace Al2O3, CaO and other mixtures. Hydromanganese ore is an important mineral raw material for extracting manganese.
5) Black manganese ore: Mn3O4 contains 65%~72% manganese. They are usually granular, lumpy aggregates. Black color, stripes reddish-brown, relative density 4.7~4.9, hardness of about 5, black manganese ore for anhydrous minerals, is the nature of all manganese containing compounds containing manganese is rich in minerals.
