Quality
Mining Office “Obukhovskaya” JSC produces premium quality anthracite coal with a minimum level of impurities making it perfect for using as a coke substitute in steel production. Anthracite also finds application in the chemical industry, for the production of soda ash, as well as for power generation.
| АО 25-70 mm | AM 13-25 mm | AS 6-13 mm | ASSH 0-13 mm | ASH 0-6 mm | ||
|---|---|---|---|---|---|---|
|
Moisture (Wi),max, % |
5,5 |
6,5 |
7 |
12 |
12 |
|
|
Ash (Аd),max, % |
5,5 |
5,5 |
8 |
15 |
20 |
|
|
Undersize mm., max, % |
12 |
17 |
22 |
30 |
40 |
|
|
Sulfur (Std),max, % |
0,9 |
0,9 |
0,9 |
0,9 |
0,9 |
|
|
Volatile matter yield dry ashless state (Vdaf),max, % |
2,6 |
2,6 |
3 |
3 |
3,5 |
|
|
Net calorific value, kkal/kg |
7800 |
7750 |
7600 |
7000 |
6500 |
|
|
HGI |
35 |
36 |
36 |
40 |
41 |
|
|
Carbon (Codaf) % |
97 |
97,5 |
96,5 |
96 |
95 |
|
|
Chlorine (CI) % |
0,097 |
0,023 |
0.041 |
0,026 |
0,026 |
|
|
Phosphorus (PD) % |
0,006 |
0,002 |
0,006 |
0,009 |
0,012 |
|
db - on dry basis
ar- as received basis