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Copper

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             After the crushed ore is extracted the stopes are backfilled with a cemented aggregate of crushed waste rock (mullock), deslimed mill tailings, cement and pulverised fuel and fuel ash. Drilling sub- levels are developed at 40-meter intervals.
             Blast hole drilling is carried out using mechanised drill rigs. This means that Ammonium nitrate fuel oil (ANFO) is the main explosive and is capable of blowing away 100 000 tonnes in one firing. These big loaders have a 6.1 cubic meter bucket capacity. Ore is either tipped directly into passes leading to the crusher, or tipped into trucks. .
             The crushed ore is then conveyed by 1.6 kilometre cable belt to the U62 hoisting system where 36 tonne skips are used to take the ore to the surface for 100% extraction. .
             Refining and Processing:.
             From the ore mines, smelting, leaching and electrolysis are the methods used to obtain the copper extract.
             .
             There are two different ways to process and refine copper. The top option is to feed handle it from the start and then goes through the smelter which sorts out the purest of the copper. After this the copper is then gas handled in a factory.
             The second option is to start with water treatment before the copper goes through the acid plant, which breaks down the copper, after this the copper, goes through the smelter which sorts out the purest of the copper. It is then refined in a factory.
             Copper Uses: .
             Copper's greatest percentage of use is in electrical wiring and motors. Copper is a good conductor of heat and electricity- hence its use in wiring. Brass and bronze are both copper alloys and are extensively used. All American coins are now copper alloys and gun metals also contain copper.
             Copper sulphate can be and is widely used as an agricultural poison, which has an algicide in water purification. .
             Copper compounds such as Fehling's solution are used in chemical tests for sugar detection. .
             The pipes and electrical wiring in most homes are made of copper.


Essays Related to Copper

1. Copper and Gold Importance in mordern industry

... Automotive 11% Electric Utilities 9% Air Conditioning & Commercial Refrigeration. 8% Telecommunications. 7% Factory Equipment. 6% Electronics. 6% Appliances & Extension Cords. 3% Other 20% TOTAL 100% http://www.unr.edu/sb204/geology/modern In America alone copper is widely used for lots of purposes, which many of us take for granted or just haven't noticed it was there, The usage of ... ions to the organic solvent, the equation above is a reversible reaction, it can be reversed by mixing the organic solvent with a small amount of concentrated acid, this will push the copper ions back int...

  • Word Count: 524
  • Approx Pages: 2
  • Grade Level: High School

2. hydrated copper crystals

... the crucible from the final weight, and then you subtract the weight of the substance left from the initial weight of the copper sulphate crystals. Diagram- Safety- When setting up the experiment, make sure that the Bunsen burner, tripod and gauze are placed away ... have to calculate the "Ar-, or mass number of each of the elements involved, adding each side of the equation's numbers together, to form a "Mr- for each side. Heat Hydrated copper sulphate ---------- Water + Anhydrous Cu (ÉÉ) SO4 . 5H2O---------- 5(H20) + Cu (ÉÉ) SO4 64 + 32 + (4 x 16) + 5(2 + 16) ---------- 5(2+16) ....

  • Word Count: 1155
  • Approx Pages: 5
  • Grade Level: High School

3. Extraction and Processing of Copper

... right at the site, from there they take the ore to the appropriate processing site, depending whether it is oxide or sulfide. Sulfide ore, which is copper ore chemically combining with mostly sulfur, usually is found deeper in a deposit, where only little oxygen is available. Sulfide ore is transported to the in pit ... last finishing. The above processing was for sulfide ore. An oxide ore, similar to the sulfide ore, is an ore, which contains copper and oxygen, compounds. However, unlike the sulfide ore, this type of ore is found near the surface where there is plenty of oxygen to react ...

  • Word Count: 688
  • Approx Pages: 3
  • Grade Level: High School

4. Science Experiment: Turning Copper to Gold

... this lab experiment was to explore the use of physical and chemical changes to imitate alchemists and turn a penny from copper to "silver " to "gold ". It was found that it is possible to use physical and chemical changes to change a copper penny to what appears to be silver and what appears to be gold. The pennies involved in this experiment did not ... actually change into silver or gold. Instead, they changed from light brown or copper in color to silver and gold in color. Chemical and physical changes are the likely changes in this experiment. Changing the penny from a shiny, light ...

  • Word Count: 601
  • Approx Pages: 2
  • Grade Level: High School

5. Copper Sunrise

... You have to make the best of your relationship, while it lasts. In some cultures it is not good to interact with other races. During the novel Copper Sunrise you can see that. Sadly Jamie's parents do not want him being around with native people. Courageously Jamie does hang around with his nice friend, ... what people say about your friends. Because often people say things that are not true, or things that they say to make themselves feel good. In Copper Sunrise you do not see Jamie betraying his friendship in Tethani because of what other people think. Instead he ignores the things peop...

  • Word Count: 882
  • Approx Pages: 4
  • Grade Level: High School

6. The Science of Electrolysis

... a loss of electrons occurs here and therefore it is oxidised (T DeWitt, 2015). An electrolyte solution may be water, a solvent with ions disassociated within or molten salts such as copper sulphate. The electrolytic cell converts electrical energy in to chemical energy, thus the electrodes must be conductive. Electrolysis is a method used for extraction of specific metals from ores, purification of ... impact to make their industries more economical (Schlesinger and Paunovic, 2000). Aim: The overall aim of the investigation was to explore which variables had a significant impact on copp...

  • Word Count: 4896
  • Approx Pages: 20
  • Has Bibliography
  • Grade Level: High School

7. Decomposition of hydrogen peroxide.

... amount of water displaced with be measured every 20 seconds. Also three times for both of the controls in which no CuSO4 will be used. Variables: Independent Variable- ? Copper Sulphate The concentration of Copper Sulphate being used will be controlled, but it will be different amounts for each test as follows; 0.2Molar, 0.4M, 0.6M, 0.8M and 1.0M. Dependant Variable- ? ... will occur between the Catalase and H2O2. I think that this will be directly proportional. So I am expecting my graph to go up in a straight line. Implementing- Apparatus: Large beaker, Liver, Copper Sulphate, Hydrog...

  • Word Count: 2761
  • Approx Pages: 11
  • Grade Level: High School

8. Chemistry Lab - Leftover Aluminum Wire

... know mass is conserved within the reaction. Also the conservation of atoms tells us that the ratio of moles of copper chloride to aluminum is constant. So given the amount of copper chloride that reacted, we could find the amount of aluminum that reacted. If all the aluminum dissolved and the liquid ... in the water, the water allows the molecules to flow freely which puts it closer to the aluminum. Since aluminum has a greater positive charge than copper, the chloride, being a negative, moves to the aluminum and reacts with it creating aluminum chloride. We were able to ignore the terms...

  • Word Count: 609
  • Approx Pages: 2
  • Grade Level: High School

9. Electrolysis

... be pure it is purified by electrolysis. The experiment carried out was intended to observe the amount of Copper (Cu) metal deposited during the electrolysis of Copper Sulphate solution (CuSo4) using Copper electrodes, when variables were changed. The following factors may have affected the amount of Copper on the cathode. Time Size of Electrodes Voltage Quantity of Solution Temperature Concentration of Solution The surface ... minutes. Then turn off the power pack, dry the anode (to make the results more accurate) and weigh it, record the results in a table. Put the anode back into the ...

  • Word Count: 712
  • Approx Pages: 3
  • Grade Level: High School

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