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Apr 16, 2018· The mine employs 19,000 directhire and contract workers. The extraction of copper ore from the mine shafts must be carefully controlled for several reasons. First and foremost is safety, as the removal of too much ore in one specific area, for instance, could create a weak spot that could collapse while miners are underground.
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Here's a look at top copper production by country in 2017, as reported by the US Geological Survey. Chile took the top spot again by a long shot. Copper prices fared well in 2017, breaking ...
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Sep 06, 2013· EXTRACTION OF IRON ORE 1) Identify the origin of the ore? Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, deep purple, to rusty red.
Iron and Steel Manufacturing Industry Description and Practices Steel is manufactured by the chemical reduction of iron ore, using an integrated steel manufacturing process or a direct reduction process. In the conventional integrated steel manufacturing process, the iron from the blast furnace is converted to steel in a basic oxygen furnace ...