BOULA CHROMITE MINE
BOULA CHROMITE MINE
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Company |
Ferro Alloys Corporation Ltd. (FACOR) |
|
Address |
Shreeram Bhawan, Tumsar – 441912, District-Bhandara, Maharashtra, India |
|
Tel. |
(91) 7183 232233 / 7183 232251 / 7183 232341 |
|
Fax |
(91) 7183 232 271 |
|
|
facor@satyam.net.in |
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Ownership |
Public Limited Company |
Ferro Alloys Corporation Ltd. was floated in 1955 by the House of Saraf and Mors to become the first major producer of ferro-manganese in the country, the largest manufacturer of ferro alloys and a producer of quality steel.
No. of Mines Controlled:3 (three)
Names of Mines: Boula, Kathpal and Ostapal Chromite Mine
Name of Deposit & Location: Durga, Laxmi and Shankar lodes are located in Nausahi ultramafic belt , Keonjhar District, Orissa, India.
Geology of Occurrence: Stratiform deposit, dipping steeply 65° to 75° and fragmented by numerous strike and dip faults. The chromite is associated with serpentinite (altered dunite).
Ore Body Description: The average strike length of the ore body is 1310 m NW/SE and the dip of the ore body varies from 65° to 75° towards the NE. The width varies from 1.5 m to 4.0 m. The ore body has been proven to a depth of 250 m.
Mining Techniques Used: Both surface and underground methods are used. Opencast mining is carried out to a depth of 90 m and underground mining to a depth of 200 m.
Reserves: As of 31/10/1999:
Geological reserves: 2322000 tonnes
Mineable reserves: 1858000 tonnes
Cr2O3: 42% and Cr: Fe Ratio: 2.40
Production Capacity: 120000 tonnes, commercial ore of 43% per annum.
Ore Dressing & Beneficiation: The run-of-mine ore is sized and sorted manually.
Type of Ore Produced: Metallurgical and refractory grades.
Average Chemical Composition of the Grades of Chromite Ore Produced (%)
| Cr2O3 |
SiO2 | FeO | CaO | Al2O3 | MgO | P | S | TiO2 | V2O5 | Cr:Fe | |
| Run-of-mine ore | 25-40 | 15-20 | 18-20 | 0.8-1.5 | 5-8 | 16-18 | 0.004- 0.007 |
0.003 0.005 |
traces | traces | 1.6-2.2 |
Marketable Product
| Cr2O3 | SiO2 | FeO | CaO | Al2O3 | MgO | P | S | TiO2 | V2O5 | Cr:Fe | |
| Concentrates | 39-42 | 8-10 | 24-26 | 1.1-1.3 | 4-8 | 10-14 | traces | traces | traces | traces | 1.4-1.6 |
| Metallurgical grade | 38-47 | 8-18 | 14-19 | 0.2-0.3 | 7-10 | 10-14 | 0.003-0.004 |
traces | traces | traces | 1.8-2.9 |
