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This document outlines a student project on extracting gold from ore and placer deposits using amalgamation and cyanidation. It discusses gold properties and major uses in jewelry, electronics, and other industries. The document also lists major gold producing countries and deposits in Pakistan, with a focus on the Jhangera and Chitral deposits. The aims and methodology cover sample processing steps like crushing, grinding, flotation, shaking tables, and the gold recovery methods of amalgamation and cyanidation.
proposal new format
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- 2. 2 Extraction of Goldfrom Placer and Ore deposits using Amalgamation and Cyanidation. Group Members: • Muhammad ali • Taj afsar • Bushra Nawaz • Hanifullah Project Supervisor: Engr.Nisar Muhammad Department Of Mining Engineering University Of Engineering & Technology Peshawar 3/14/2015
- 3. Outline • Gold • Golduses • Gold properties • Impurities • Gold Deposits in Pakistan • Aims & Objectives • Methodology 3/14/2015 3
- 4. Gold • One ofthe most important and expensive metals • Occurs in native form • Pakistan has 5th largest gold deposit in world 3/14/2015 4
- 5. Gold It exist in2 forms: Ore form Placer deposit 3/14/2015 5
- 6. Uses: • Jewelry(78%) • Asa Medium of Exchange • Electrical-electronic applications • Dentistry • The aircraft-aerospace industry • The arts • Medical • Medals and Awards • Glassmaking 3/14/2015 6
- 7. Properties: • Metallic luster •Specific gravity or density is 19.3 • Density is 16 to 18 • Hardness of a penny • Chemically inert 3/14/2015 7
- 8. List of Countriesby Gold Production 2013: Rank Country/Region Gold production (Metric Tons) in 2013 World 2,770 1 China 420 2 Australia 255 3 United States 227 4 Russia 220 5 Peru 150 6 South Africa 145 7 Canada 120 8 Mexico 100 9 Uzbekistan 93 10 Ghana 85 11 Brazil 75 12 Papua New Guinea 62 13 Indonesia 60 14 Chile 55 Rest of the world 700 3/14/2015 8
- 9. Impurities associated withgold: 3/14/2015 9
- 10. Gold deposits inPakistan 1. Placer deposits of Pakistan extend throughout the country from Northern Areas to the Arabian sea 2. Gold occurs in Pakistan in both placer and rock deposits. 3/14/2015 10
- 11. Gold deposits inPakistan (contd.) Major gold deposits are : • Reko diq • Chitral • Saindak • Gilgit(river indus) • Jhangera(river Kabul) • Arabian sea In our project we will work on Jhangera and Chitral Gold ore 3/14/2015 11
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- 13. Methodology Ore Sample Placerdeposit Report writing Gold Cyanidation Concentrate Flotation Shaking Table Grinding Crushing Transportation of material Report writing Gold Cyanidation Concentrate Amalgamation Shaking Table Removal of coarse material Transportation of material 3/14/2015 13
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- 15. Thank you God blessyou all 3/14/2015 15
Editor's Notes
- #7 3-Gold is a highly efficient conductor that is able to carry tiny electrical charges, and because of this property a small amount is found in almost all electronic devices, including cell phones, televisions, GPS units and more. Because gold is such an efficient conductor of electrical charges, it is also often found in desktop and laptop computers to transfer information quickly. 7-In the medical field, small amounts of gold isotopes are used in certain radiation treatments and diagnosis. 5-Gold is used to lubricate mechanical parts, conduct electricity and coat the insides of space vehicles to protect people inside from infrared radiation and heat. 9-Gold is also used when making specialty glass for climate controlled buildings and cases. A small amount of gold dispersed within the glass or coated onto the glass surface will reflect solar radiation outward, helping the buildings stay cool in the summer, and reflect internal heat inward, helping them stay warm in winter.
- #8 1-Pure gold is relatively soft--it has about the hardness of a penny 2-Impure gold, as it commonly occurs in deposits, has a density of 16 to 18, whereas the associated waste rock (gangue) has a density of about 2.5. The difference in density enables gold to be concentrated by gravity and permits the separation of gold from clay, silt, sand, and gravel by various agitating and collecting devices such as the gold pan, rocker, and sluicebox.
- #9 is from a report on the U.S. Geological Survey website
- #12 Cordinates of jhangira 33°57'46" N 72°13'17" E Jehangira is under Swabi distric
- #14 Deposits considered to be economically recoverable at current market prices may contain as little as 0.69 to 1.37 ppm