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Porphyry copper deposits are currently the largest source of copper ore. Most of the known porphyry are concentrated in: western South and North America and Southeast Asia and Oceana - along the Pacific Ring of Fire; the Caribbean; southern central Europe and the area around eastern Turkey; scattered areas in China, the Mideast, Russia, and the CIS states; and eastern Australia. Only a few are identified in Africa, in Namibia and Zambia; none are known in Antarctica. The greatest concentration of the largest copper porphyry is in Chile. Almost all mines exploiting large porphyry deposits produce from open pits. Chile is the world’s largest copper producer, producing 5 390 thousand metric tons in 2010 as opposed to 5 520 in 2009. Chile has approximately 24% of the world’s known copper reserves.
Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish. It is used as a conductor of heat and electricity, a building material, and a constituent of various metal alloys. The metal and its alloys have been used for thousands of years. Its compounds are commonly encountered as copper salts, which often impart blue or green colors to minerals such as turquoise and have been widely used historically as pigments. Architectural structures built with copper corrode to give green verdigris. Decorative art prominently features copper, both by itself and as part of pigments.
In the copper mining of Chile, first,we can use copper jaw crusher as primarycrushing equipment, when copper raw ore is crushed to be a reasonable fineness via the hoist, we can use feeder which will feeding reasonable copper ore into the ball mill, copper ore will be crushed, grinded further in the ball mill. After grinding, copper ore fines into the next process: classification. Spiral classifier with different proportion of solid particles in the liquid precipitation rate of different principle, mixed copper ore washing, grading. After cleaning and grading of copper mineral mixture after magnetic separation machine, due to various kinds of copper ore than susceptibility, through magnetic force and mechanical force will mixture of magnetic materials. After preliminary separation of magnetic separator, the copper ore particles are fed into the flotation machine, according to the different types of copper ore features to join different drugs, has made to separate copper ore and other substances. On the copper ore after being separated, because it contains a lot of water, must obtain the preliminary enrichment of thickener, then through the dryer, we can get dried copper ore.
Copper production process mainly includes several stages of extraction, milling and processing. Commonly, we use copper jaw crusher, copper ore ball mill, and feeding machine and belt conveyor to compose of a complete copper mining production line in Chile.Copper ore is mined either at via open pit mines or underground mines. The beginning for all copper is to mine sulfide and oxide ores through digging or blasting and then crushing. The copper ore is broken into small grain sizes of less than 25 centimeters in diameter by primary crusher, which will be crushed into pieces by secondary crusher or fineness crusher.
Most of copper mining investors will adopt many copper ore crushers and copper ore grinding mill to finish copper ore mining process. Crushing and grinding to section number depending on the species of copper ore, material particle size, product fineness and device type. SBM has been taken in manufacturing copper crushing and grinding equipment for several years. We can provide professional copper miningequipment and technology for Chile customer. In Chile, SBM sale copper quarry machine, copper crusher plant, copper grinding mill, and copper processing, separation.
Vertical Roller Mill are advanced mill equipment adopting top grinding technology applied widely in grinding non-flammable and non-explosive materials.
Magnetic separation machine can be applied for wet dressing of ores with the size less than 3mm.
LSX sand washing machine is mainly used for sand processing, electric pole factory, building work site and concrete dam etc.
Vibrating screen is suitable for the moist , fine grain and hard screening material dry screening in mining industry.
Hammer crusher machine is developed for both dry and wet crushing of brittle, medium-hard materials for the mining, cement, coal, metallurgic materials etc.
