Description
Endomines is a mining company which is also engaged in exploration. Endomine’s underground mine operation, Pampalo Mine, and exploration targets are located in Ilomantsi, North Karelia. The satellite mine, Ramepuro, located 15 km from the Pampalo was in production. The responses do not concern the claims located in the municipalities of Tervola and Kittilä. Endomines Ab, the parent company, is registered and listed in Sweden.
Ore is hauled from the mine by trucks and is stored in a designated area close the crushing plant, from which it is fed onto the plate feeder of the crushing plant using a wheel loader. Crushing takes place in three phases. The first phase of crushing takes place in an open circuit. The second and third phase take place in a closed circuit. Crushed ore is stockpiled in a 18 m high heap. From the heap crushed ore is fed on to a conveyor belt and conveyed to the processing plant.
The crushing plant does not use process chemicals, with the exception of various lubricants used in the crushers and conveyors. From storage silos, crushed rock is transferred on conveyors for grinding. Based on its particle size, fine aggregate is led via classifiers either to specific weight separation or a flotation process. Coarser aggregate, larger than 0.1mm in size, is led to specific weight separation in which gold is separated. After concentration through specific weight separation, aggregate left unseparated is returned to grinding and classification. Chemicals are used in the flotation and thickening of finer aggregate less than 0.1mm in size. In flotation cells, chemically treated gold grains are raised by foamy air bubbles to the surface and carried into concentration chutes. Sulphides contained in ore, largely pyrites (FeS2), are raised to the surface, mixed with gold concentration, and delivered for further processing. The rest consists of tailings, which are led to a tailings basin. Tailings are separated from sludge through settling. The water thus separated is led to a post-clarification basin and, from it, back to the process.
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Toiminta-alue: Ilomantsi
Yhteystiedot vastuullisuusasioissa:
Henna Mutanen
henna.mutanen@endomines.com
+358 (0)50 364 1241