Manganese Concentrate
Tin concentrates from the alluvial mining areas are relatively free of impurities, although there may be small quantities of related minerals such as wolframite, scheelite, and columbite. Concentrates shipped to the smelter usually contain 70 to 75 percent tin metal. On the other hand, the complex sulfide ores found in underground deposits, require more complicated mineral processing, often involving froth flotation, in order to produce a clean tin concentrate.
Tin concentrates from the alluvial mining areas are relatively free of impurities, although there may be small quantities of related minerals such as wolframite, scheelite, and columbite. Concentrates shipped to the smelter usually contain 70 to 75 percent tin metal. On the other hand, the complex sulfide ores found in underground deposits, require more complicated mineral processing, often involving froth flotation, in order to produce a clean tin concentrate.
Properties of Manganese Concentrate
| Molecular Weight | 118.69 |
|---|---|
| Appearance | Silver-gray metallic |
| Boiling point | 2602 °C |
| Melting point | 232 °C |
| Density | 7.265-7.31 g/cm3(20 °C) |
| Electrical Resistivity | 11.5 x 10-8 Ω·m |
| Electronegativity | 1.96 Paulings |
| Heat of fusion | 7.03 kJ/mol |
| Heat of vaporization | 296.1 kJ/mol |
| Poisson's ratio | 0.36 |
| Specific heat | 0.21 J/g·°C (25 °C) |
| Thermal conductivity | 66.8 W/(m·K) |
| Thermal expansion | 22.0 µm/(m·K) (20 °C) |
| Young's modulus | 50 GPa |