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Location: 1 km SE from Sangaredi, Guinea
2nd Floor, Sérhou Guirassy BuildingPO Box: 523ConakryGuinea
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Mining scale, mining and mill throughput capaciites.Full profiles of select mines and projects.
Shaft depth, mining scale, backfill type and mill throughput data.Full profiles of select mines and projects.
Equipment type, model, size and quantity.Full profiles of select mines and projects.
Camp size, mine location and contacts.Full profiles of select mines and projects.
CBG owned jointly by Halco Mining Inc. (51%) and the Guinean Government (49%). Halco is a consortium comprised of Rio Tinto (45%), Alcoa (45%) and Dadco Investments (10%).
Ownership of Sangaredi (Boké) mine: Guinean Government 49%, Rio Tinto Group 22.95%, Alcoa 22.95%, Dadco Investments Limited 5.1%.
The bauxite deposits within the Compagnie des Bauxites de Guinée (CBG) lease are of two general types.Type 1: In-situ laterization of Ordovician and Devonian plateau sediments locally intruded by dolerite dikes and sills.Type 2: Sangaredi type deposits are derived from clastic deposition of material eroded from the TYPE 1 laterite deposits and possibly some of the proliths from the TYPE 1 plateaus deposits.Bauxite occurs as a paleolaterite profile developed at an angular unconformity between underlying late Triassic to early Cretaceous sediments (parent rock sequence Biyadh Formation) and the overlying late Cretaceous Wasia Formation (overburden sequence).CBG is developing a range of bauxite deposits in the prefectures of Boké, Télimélé and Gaoual. The most important of these is the Sangarédi plateau.
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The bauxite is transported by railway cars approximately 135 km away from Sangaredi to Kamsar. At Kamsar, the raw material is crushed in a giant workshop and handled to the production control stocks or to the drying kilns. The crushed and dried bauxite is then sent for loading onto ships with capacities ranging from 50 to 70 thousand tonnes on average.In Kamsar, the installations include the following assets: locomotive repair shop, railway cars unloader, primary crusher, secondary crusher, scrubbers, conveyors, stacker, reclaimer, bauxite dryers, dry bauxite storage, bauxite sampling tower, power house, wharf, ship loader, etc. The crushing plant is used only to reduce oversize material – no screening required. Four bauxite dryers are installed in order to reduce the moisture content of the bauxite before shipping. CBG has confirmed the three existing dryers plus Dryer 4 operating at 900tph will be sufficient for the drying of 18.5 Mtpa ........
