Anthracite Coal is a hard, compact coal that has a sub-metallic luster. It also contains the highest level of fixed carbon, the lowest level of impurities, and the highest energy density among all types of coal except graphite.
These properties help make it suitable for many metallurgical applications. Smaller sizes such as #5 and barley are utilized for injection into electric-arc furnaces to aid in foamy slag production. Larger sizes such as pea, buck, nut and stove are utilized as charge carbon.
Anthracite coal is a type of fossil fuel with high percentage of pure carbon (up to 97 per cent, usually 93-95). Characterized by higher temperature of burning and calorific value in comparison to other solid fuels available on the market.
Lumps of anthracite coal have greyish-black or black shade and semi-metallic shine. Pieces of anthracite coal are harder and more solid when compared to other solid fuels.
Use: Additional uses of anthracite coal include filtration media, heat shields for open top furnaces, foundries utilizing cupolas, heating fuel, charcoal, pelletizing/sintering and ferro-alloy carbon electrodes.
| SIZE IN MM | ASH | VM | FC | GCV | SULPHUR |
|---|---|---|---|---|---|
| 0-2 | 24-25% | 4-5% | 70% | 5600 | 0.80% |
| 0-4 | 22-23% | 10-11% | 65-67% | 5400 | 0.80% |
| 0-20 | 16-17% | 11-12% | 70-72% | 5700 | 1.00% |
| 2-10 | 12-13% | 11% | 76-78% | 6300 | 1.30% |
| 10-20 | 12-13% | 11% | 76-78% | 6300 | 1.50% |
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