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Chat OnlineMinnesota has a long history of mining iron ore which continues to this day. In fact nearly 75 percent of the iron ore produced in the United States is mined in Minnesota. However many people may not be aware of the fact that Minnesota has some of the largest undeveloped copper and nickel deposits in the world. These massive deposits hold an estimated 4 billion tons of copper nickel and
Chat OnlineAccording to the study all of the copper in ore plus all of the copper currently in use would be required to bring the world to the level of the developed nations for power transmission
Chat OnlineNov 07 2010 · An 8.00 g sample of a copper ore was dissolved in an acid solution and then reacted with NO3 from a KNO3 salt solution. 3Cu 8NO3 8H ----->3Cu2 2NO 4H2O 6NO3 It required 71.5 mL of a 0.155 M KNO3 solution to fully react the copper in the ore sample. What was the percent copper in the ore
Chat OnlineAn ore contains 12 copper how many kilograms of those are required to get 69 kg of copper Ask for details Solution Part = mass of copper =69 kg Part percentage = percentage of copper in the ore=12 Whole= mass of ore required Plug in the above values in the formula 575 kg ore is required to get 69 kg of copper. Answer. 4.6 75 votes
Chat OnlineNov 07 2010 · An 8.00 g sample of a copper ore was dissolved in an acid solution and then reacted with NO3 from a KNO3 salt solution. 3Cu 8NO3 8H ----->3Cu2 2NO 4H2O 6NO3 It required 71.5 mL of a 0.155 M KNO3 solution to fully react the copper in the ore sample. What was the percent copper in the ore
Chat OnlineWhat s in an ore There are many types of copper ore found throughout the world. Picture 4 shows the distribution of these deposits. About 80 of all copper extracted comes from sulphide ores. A typical ore contains only 0.5 to 2.0 copper. It is a measure of the value of copper that it is worth extracting it from such small concentrations.
Chat OnlineThese produce many millions of tonnes of copper ore per year. The main ores of copper are sulfides and oxides. From their chemical formulas you can calculate the percentage of copper in each mineral. However this is not the same as the percentage of copper in the ore as that also contains unwanted silicates and other minerals called gangue
Chat OnlineEnergy and Environmental Profile of the U.S. Mining Industry 5.1.3 Copper Processing Prior to pyrometallurgical the ore (which often contains less than one percent copper) is crushed and ground with water and placed in a concentrator. The rock/water slurry is subjected to physical and chemical actions (i.e. air sparging and hydrophobic chemical
Chat OnlineAnswer to The percentages of copper and iron in a certain kind of ore are respectively X1 and X2. If the joint density of these two random variables is given by
Chat OnlineCopper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source local environmental regulations and other factors.
Chat OnlineAlthough some silver-bearing ores contain silver as their largest metal value virtually none has silver as its main constituent. A typical ore might contain 0.085 percent silver 0.5 percent lead 0.5 percent copper and 0.3 percent antimony. After flotation separation the concentrate would contain Read More thorium. In thorium processing
Chat OnlineJan 06 2020 · Report required on copper-nickel mining s effect on international waters and the U.S. government s efforts to notify Canada about potential cross-boundary pollution from sulfide-ore copper
Chat OnlineA metallurgical assay is a compositional analysis of an ore metal or alloy.. Some assay methods are suitable for raw materials others are more appropriate for finished goods. Raw precious metals are assayed by an assay office.Silver is assayed by titration gold by cupellation and platinum by inductively coupled plasma optical emission spectrometry (ICP OES).
Chat OnlineQuestion. Suppose that you are building a new house. It will take about 90 kg (198 pounds) of copper to do the electrical wiring. In order to get the copper in the first place someone needs to mine solid rock that contains copper extract the copper minerals throw away the waste rock and smelt the copper minerals to produce copper metal.
Chat OnlineCHEMICAL REACTIONS OF COPPER AND PERCENT YIELD KEY Objective To gain familiarity with basic laboratory procedures some chemistry of a typical transition element and the concept of percent yield. Apparatus and Chemicals 0.5 g piece of no. 16 or no. 18 copper wire evaporating dish 250 mL beaker (2) weighing paper concentrated HNO
Chat OnlineTo test that hypothesis Fig. 8 relates percentage copper content to the tonnage of ore for 423 porphyry copper deposits. There is no correlation in this much larger sample of deposits from the USGS database. Download Download full-size image Fig. 8. Percentage copper
Chat OnlineBINQ Mining > Ore Process > what percent of copper in copper ore is necessary for it to be worth mining Print. what percent of copper in copper ore is necessary for it to be worth mining. Posted at February 20 2013 4.71096 Ratings What is a good percent of copper in copper ore to be
Chat OnlineThe percentage of copper in the actual ore is too low for direct extraction of copper to be viable. The concentration of ore is required and it is done by the Froth Flotation method. Concentration of Ore The ore is crushed into a fine powder and a suspension is created in water. To this are added Collectors and Froth Stabilizers.
Chat OnlineAn ore contains 12 copper how many kilograms of those are required to get 69 kg of copper Ask for details Solution Part = mass of copper =69 kg Part percentage = percentage of copper in the ore=12 Whole= mass of ore required Plug in the above values in the formula 575 kg ore is required to get 69 kg of copper. Answer. 4.6 75 votes
Chat OnlineJun 25 2013 · Copper is extracted from copper ore by a series of chemical physical and electrochemical processes. Ores can be classed as high grade or low grade depending on the percentage of copper compounds (e.g. copper carbonate) they contain. After mining the ore is crushed roasted smelted and then electrolysed to extract the copper.
Chat OnlineCopper is usually found in nature in association with sulfur. Pure copper metal is generally produced from a multistage process beginning with the mining and concentrating of low-grade ores containing copper sulfide minerals and followed by smelting and electrolytic refining to produce a pure copper
Chat OnlineCommercial copper ore deposits today contain from 0.5 to 6 percent copper or between 100 and 1000 times the crustal average. In contrast iron and aluminum constitute around 5.8 percent and 8 percent of the earth s crust respectively and their commercial deposits need to be only 3 to 10 times as concentrated as the crustal aver-age.
Chat OnlinePart C A mass of 0.3376 g of ore was dissolved in I (aq). The resulting solution required 17.98 mL of 0.01043 M Na2S2O3 for complete titration. What is the percentage of copper in the ore 43 Mt Nas S 0 for complo Express your answer to four significant figures and include the appropriate units
Chat OnlineFollowing is a list of minerals that serve as copper ores in the copper mining process
Chat Online12.3 Primary Copper Smelting 12.3.1 General1 Copper ore is produced in 13 states. In 1989 Arizona produced 60 percent of the total U. S. ore. Fourteen domestic mines accounted for more than 95 percent of the 1.45 megagrams (Mg)
Chat OnlineLet the total amount of ore be= X kg Then as per the question (12/100) X =69 Solving we get X= 575 kg
Chat OnlineCopper processing is a complicated process that begins with mining of the ore (less than 1 copper) and ends with sheets of 99.99 pure copper called cathodes which will ultimately be made into products for everyday use.The most common types of ore copper oxide and copper sulfide undergo two different processes hydrometallurgy and pyrometallurgy respectively due to the different
Chat OnlineThe average grade of copper ores in the 21st century is below 0.6 percent copper with the proportion of ore minerals being less than 2 percent of the total volume of the ore rock.
Chat OnlineNov 25 2019 · The world s 20 largest copper mines produce nearly 9 million metric tons of the precious metal a year about 40 of the world s total copper mine capacity. Chile and Peru alone account for more than half of the copper mines on this list. The U.S. makes the cut as well with two mines among the top 20.
Chat OnlineDetermining the Percentage of Copper in a Copper Ore Essay Sample. Aim To determine the percentage of copper present in malachite. Hypothesis That the percentage of copper in the malachite will be four percent. Materials 2 x 250mL beaker pestle malachite sulfuric acid water 2 x filter paper funnel filter stand
Chat Onlinewhere this ore was once quarried are contaminated with low percentages of copper sulfide. Copper would be too expensive to extract from this contaminated land using the traditional method of quarrying and then heating in a furnace. (a)€€€€ The percentage of copper ore in the contaminated land is low.
Chat OnlineCopper Resources and Technology in mining industryMining . The deposits in the sout hwe stern United States and northern Mexico contain 200 to 500 million tonnes of to percent copper ore. important in terms of metal copper mining. »More detailed
Chat OnlineThe concentration factor of copper in an economically viable ore body is about >80-100 times that of the average value of copper in the Earth s crust. The grade of copper required for mining to be viable changes with time as a result of variable demand for copper and
Chat OnlineJan 06 2020 · Report required on copper-nickel mining s effect on international waters and the U.S. government s efforts to notify Canada about potential cross-boundary pollution from sulfide-ore copper
Chat OnlineCopper processing the extraction of copper from its ores and the preparation of copper metal or chemical compounds for use in various products. In its pure form or as an alloy copper (Cu) is one of the most important metals in society. The pure metal has a face-centred cubic crystal structure and
Chat OnlineThe average copper ore mined in 1900 was five percent copper by weight. Copper ore mined in 1990 was approximately 0.5 percent copper by weight. What factors could account for this difference One possible cause is legislation that required reclamation. This is because the mining of higher quality copper probably causes more damage to the
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