energy used in crushing copper ores

  • MINING ENERGY CONSUMPTION

    crushing, pumps and other equipment—the grinding mill(s) are normally the largest single energy consumer. This report quantifies energy use in five commodities: copper, gold, The use of solar energy in the copper mining processes,101· For copper ores, the processing accounts for 45% of the total energy requirements, extraction, and material handling 45%, and general and administrative

  • Chapter 7 Energy Use in the Copper Industry Princeton University

    Energy Use in the Copper Industry All aspects of copper production require energy, whether i n the form of electricity, explosives, or hydrocarbon fuels (diesel, gasoline, Copper Mining and Processing: Processing Copper Ores,Oxide ores are generally processed using hydrometallurgy. This process uses aqueous (waterbased) solutions to extract and purify copper from copper oxide ores at ordinary temperatures, usually in three steps: heap

  • Methods of Ore Pretreatment for Comminution Energy

    43· The comminution of ores consumes a high portion of energy. Therefore, different pretreatment methods of ores prior to their comminution are considered to Energy and Environmental Profile of the U.S. Mining ,Copper beneficiation may consists of: crushing and grinding, washing, filtration, sorting and sizing, gravity concentration, flotation, roasting, autoclaving, chlorination, dump and in

  • Copper processing Ores, Mining, and Refining Britannica

    The first step, mineral processing, is to liberate the copper minerals and remove waste constituents—such as alumina, limestone, pyrite, and silica—so that the copper minerals and other nonferrous minerals of Crushing Energy Efficiency North American Mining Magazine,610· In particular, the decarbonized economy is going to require copper for electricity transmission; lithium, nickel, graphite and cobalt for electric vehicle and grid

  • MINING ENERGY CONSUMPTION

    Information has been collected that examines total final energy consumption in copper, gold, nickel, lithium and iron ore. The study has focussed on minerals processing that involves comminution and either concentration through flotation or leaching.The Ore Grade and Depth Influence on Copper Energy Inputs,1122· On the basis of the equation, an ore grade of 0.5, 0.4 and 0.3% at 300 m of depth results in an energy cost of 60, 127 and 447 MJ/kg to obtain a 30%+ copper concentrate from underground mines, and 52, 95 and 255 MJ/kg for

  • Mineral processing Wikipedia

    The primarily used equipment in crushing are jaw crushers, These fine bubbles have a higher kinetic energy and as such they can be used for the flotation of fine grained minerals, magnetic separation was used to Chapter 7 Energy Use in the Copper Industry Princeton University,Figure 7l. Openpit Mine Energy Use 1. 1 r1,, 1 1 11 ! i 0 10 ’20 3040 50 6070 80 90 100 % energy use Underground mines use electricity for generating compressed air, pumping, lighting, ‘ventilation, and hauling miners and materials. They also use diesel fuel for surface hauling of ore to the mill. Approximately 155 pounds of explosives

  • Beneficiation of copper ores based on highdensity separation fluidized

    101· Copper and its alloys have advantages of good electrical and thermal conductivity, strong corrosion resistance, easy processability, and good tensile and fatigue strength; they are widely used in electrical industry, national defense industry, computer industry, machinery manufacturing, and other industries [1 ].Energy Use of Fine Grinding in Mineral Processing SpringerLink,20131218· Fine grinding, to P80 sizes as low as 7 μm, is becoming increasingly important as mines treat ores with smaller liberation sizes. This grinding is typically done using stirred mills such as the Isamill or Stirred Media Detritor. While fine grinding consumes less energy than primary grinding, it can still account for a substantial part of a mill’s

  • Copper Mining and Processing: Processing Copper

    This process uses a series of physical steps and high temperatures to extract and purify copper from copper sulfide ores, in four basic steps: 1) froth flotation, 2) thickening, 3) smelting, and 4) electrolysis. Following Energy and Environmental Profile of the U.S. Mining Industry 5,Copper processing or pyrometallurgical processes employ hightemperature chemical reactions to extract copper from its ores and concentrates. Generally, these processes are used with copper sulfides and, in some cases, highgrade oxides. Depending on the copper mineral and the type of equipment, pyrometallurgical recovery may take as many

  • Copper processing Ores, Mining, and Refining

    Principal forms in which copper ores are found include native copper, porphyry copper, massive deposits, and mixed ores. Native copper is simply the metal found unadulterated in nature. Occasionally copper is Crushing Energy Efficiency North American Mining Magazine,610· In particular, the decarbonized economy is going to require copper for electricity transmission; lithium, nickel, graphite and cobalt for electric vehicle and gridsupport batteries; aluminum for lightweight electric vehicles components; and rare earths for renewable energy plants such as wind turbines.

  • Copper extraction Wikipedia

    Copper extraction refers to the methods used to obtain copper from its ores. The conversion of copper ores consists of a series of physical, chemical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. [1]The Ore Grade and Depth Influence on Copper Energy Inputs,1122· On the basis of the equation, an ore grade of 0.5, 0.4 and 0.3% at 300 m of depth results in an energy cost of 60, 127 and 447 MJ/kg to obtain a 30%+ copper concentrate from underground mines, and 52, 95 and 255 MJ/kg for

  • Chapter 7 Energy Use in the Copper Industry Princeton University

    Figure 7l. Openpit Mine Energy Use 1. 1 r1,, 1 1 11 ! i 0 10 ’20 3040 50 6070 80 90 100 % energy use Underground mines use electricity for generating compressed air, pumping, lighting, ‘ventilation, and hauling miners and materials. They also use diesel fuel for surface hauling of ore to the mill. Approximately 155 pounds of explosivesCurrent Status of CopperOre Processing: A Review,98· Flotation reagents used in the processing of copper sulfide and oxide ores and their costs are presented. The combined circuit of flotationhydrometallurgical processing of mixed copper ore at the Udokan deposit is considered. The conclusions reveal the current trends in the processing of copper ores, including the choice of

  • Energy Use of Fine Grinding in Mineral Processing SpringerLink

    20131218· Fine grinding, to P80 sizes as low as 7 μm, is becoming increasingly important as mines treat ores with smaller liberation sizes. This grinding is typically done using stirred mills such as the Isamill or Stirred Media Detritor. While fine grinding consumes less energy than primary grinding, it can still account for a substantial part of a mill’s Energy and Environmental Profile of the U.S. Mining Industry 5,Copper processing or pyrometallurgical processes employ hightemperature chemical reactions to extract copper from its ores and concentrates. Generally, these processes are used with copper sulfides and, in some cases, highgrade oxides. Depending on the copper mineral and the type of equipment, pyrometallurgical recovery may take as many

  • Benchmarking comminution energy consumption for the

    20141015· Marsden (2008) used case studies of Chilean copper mines as the basis for an energy model incorporating grade and processing route, Fig. 1 displays the result for an ore with a copper grade of 0.5% and a flowsheet incorporating SAG and ball milling, flotation and smelting.Crushing Energy & Work of Crushing Machines 911 ,35· W = Pf/2 = P²L/2AE = A²S²L/2AE = S²/2E x AL. When P/A = S. If, to simplify the mathematics of the demonstration, we assume the particle under load a cube of edge D, then A = D 2, L = D, S 2 /E is an

  • Copper Mining and Processing: Processing Copper

    This process uses a series of physical steps and high temperatures to extract and purify copper from copper sulfide ores, in four basic steps: 1) froth flotation, 2) thickening, 3) smelting, and 4) electrolysis. Following Copper processing Ores, Mining, and Refining,Principal forms in which copper ores are found include native copper, porphyry copper, massive deposits, and mixed ores. Native copper is simply the metal found unadulterated in nature. Occasionally copper is