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In 1999, an expansion project to double installed capacity was started, and in January 2001 the first metal was tapped from this second line. The smelter produces high-purity, low-carbon ferronickel granules. Production in FY2008 was 41,800t of contained nickel, some 9,000t lower than FY2007’s production principally due to an industrial stoppage during FY2008. Higher electricity and gas costs also affected the overall performance of Cerro Matoso for 2008. Cerro Matoso has an estimated reserve life of 42 years, based on current production levels, however BHP has identified opportunities to expand this significantly, notably building a third and fourth processing line and a heap leaching operation. Two typical sections through the weathering profile were sampled from an area of the mine with high (pit 1) and lower (pit 2) Ni grades. Bench mapping has shown that pits 1 and 2 have distinctly different weathering profiles. From bottom to top, the profile in pit 1 is weakly serpentinized peridotitic protolith, saprolitized peridotite, green saprolite (main ore horizon), "tachylite" (used by mine geologists to describe an enigmatic Fe oxide horizon), black saprolite, yellow laterite, red laterite. When energy prices are soaring, the major world aluminum company started by reducing the cost of electrolytic aluminium production each link to ensure the aluminium production price competition. From domestic policy analysis, the state industrial policies on for aluminum industry positioning in meeting domestic demand, and to high-grade products and low in product technical content would be a difference in policy. Therefore, grasps the transportation, power, packaging, home electrical appliances industry development trend, and actively introduce advanced equipment, improve technical ability to reduce the production cost currently become the main development direction of aluminum company. MTW European trapezoidal roller mill and LM vertical milling machine for the launch of the development of chinalco undoubtedly brought new opportunities. Silicon is the second most common element in the Earth's crust, comprising 25.7% of the Earth crust by weight. It is shiny, dark gray with a tint of blue. Silicon is never found in its natural state, but rather in combination with oxygen as a silicate ion (SiO4) in silica-rich rocks such as obsidian, granite, diorite, and sandstone. Feldspar and quartz are the most significant silicate minerals. Silicon alloys with a variety of metals, including iron, aluminum, copper, nickel, manganese and ferrochromium. This series of jaw crushers is mainly used for rough and moderate broken operations of various ore materials those compressive resistance is not more than 320 Mpa. This crusher has features of high broken ratio, uniform product size, simple structure, reliable operation, convenient maintenance, low operating costs etc, which is widely used in mining, smelting, building, roads, railways, water conservancy and chemical industry. motor drives the eccentric axis rotating through the belt pulley, so that the movable jaw approaches and leaves the fixed jaw cyclically, which makes the materials multi-crushed, such as squeezed, rubbed, rolled etc. so that the materials are crushed into small size, and then fall below gradually, at last discharge from the discharging mouth.
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