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Mining
Mining for coal is something that is widely known, but did you know that diamonds, uranium, copper, and other non-renewable natural resources are also mined? There are two types of mining; surface and subsurface. Questions about the methods and types of mining, what ores are mined, and related questions should be asked in this category.
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You can mine gold, coal and iron ore there might be more things that you can mine but these are the ones that i know of
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The mining of platinum starts with finding an ore body containing platinum group metals (PGM), usually associated with copper and nickel ores. You dig and drill and blast and haul the rock up to the surface. Then the ore that you have mined has to be processed to remove the platinum and other valuable metals from the rock, and that is one of the greatest chemical engineering challenges in industry today. The best mine-run ore only contains roughly 5 grams of PGM per ton of ore. Flotation: The extracted ore is crushed and milled to small particles. The particles are placed in a mixture of water and chemicals, and air is blown through the mixture. The PGM particles adhere to the bubbles and float to the top where they can be captured. Particles that didn't float are re-crushed and re-milled and re-floated to increase the yield. At this point, the float concentrate contains between 100 and 1000 grams of PGM per ton of concentrate. Smelting: The float concentrate is placed in an electric furnace and heated to about 1500oC, where a "converter matte" containing the valuable metals is formed, allowing the unwanted minerals to be discarded. The matte contains about 1500 grams of PGM per ton. Electrolytic refining: Electricity is used to separate base metals (usually copper and nickel) from the PGM, which collects as a sludge under the electrical anode. Chemical refining: The anode sludge of precious metals then has to be separated into the individual metals through a series of intricate chemical processes such as solvent extraction, distillation, and ion-exchange reactions. First gold and silver are obtained, then palladium and platinum, and finally the elusive metals indium, osmium, rhodium and ruthenium. It can take 6 months or more to obtain metals from an ore batch. Electrolytic and chemical refining facilities are typically not located at mine sites, so that PGM converter matte and anode sludge are refined elsewhere and even in different countries from where they are mined. 90% of the world's platinum production presently originates at the Bushveld Igneous Complex in South Africa and the Norilsk-Talnakh mines in Russia. Platinum is also produced in Canada, Montana USA, and elsewhere, mainly as a byproduct of mining for copper, nickel and palladium.
What gemstones are mined in Canada?
Diamonds are mined in NWT. Opals and nephrite jade come from BC. There are numerous other semiprecious materials mined but most are from smaller localized operations. See the related link (below) for detail.
What top iron ore producers are not in asia?
Top iron ore producers that are not located in Asia are Australia, Brazil, and South Africa. Also on the list is the United States.
What was the advantage of using hydraulic mining when mining for gold?
Hydraulic mining blasts away the surface of the mine with highly pressurized jets of water. This allows for easy access to the minerals underneath. A negative consequence of Hydraulic mining is the damage to the surrounding environment.
What was the advantage of using hydraulic mining when mining for gold in the gold rush?
After the hydraulic giant was invented with a balance system to allow one operator to manage it, many large low and medium grade deposits of gold became feasible to mine. Heavy Equipment was extremely expensive to operate and to power, not to mention maintenance.
If adequate water was in the vicinity preferably moved by gravity hydraulic mining could become profitable. If was cheaper if the water pressure was generated by gravity through a stream dammed and piped to the working face rather than by mechanical pumps due to cost. Other considerations were a area usually a river to dump the tailing's in a gouge or steep valley also works but most always lead to a river.
Hydraulicking the ground was also used to remove overburden or barren ground so hydraulicking was employed to remove this layer and expose the gold bearing gravels below.
Many hydraulic mining operations both large and small were forced to shut down by changes in mining laws and WWII as there was a ban on mining except for select metals and minerals shut all of the operations down the majority of which never restarted. The areas where work stopped are good areas to employ metal detectors today as the hydraulic nozzles had tremendous amounts of force but only at the nozzle contact are and directly below. The hydraulicked floor of the pit or "cut" would wash a fair amount of the fine gold down but unless thoroughly cleaned of all pay would permit larger coarser gold to settle near the surface hidden.
gold gets exported by plane it normally take around a whole month from gold to go by plane top a diffrent countrie
What are the positive and negative impacts of mining?
Some positive impacts of mining are that it brings employment to the area and community development projects. Negative impacts include changing the social dynamics of the community, impacting health and livelihoods, and preventing access to clean land and water.
What is the difference between pet-coke and coal-coke?
Pet-coke, or petroleum coke, is a byproduct of the oil refining process, while coal-coke is a byproduct of coal carbonization. Pet-coke has a higher carbon content and lower impurities compared to coal-coke, making it a more efficient fuel source. Pet-coke is typically used in industrial processes, while coal-coke is mainly used in the steel industry.
It is necessary ! Mininig with precautions is mandatory now.
What is the average life of a mine?
If you're referring to land mines, they can lay in the ground and remain dangerous for many decades. Unexploded ordnance of various types often lasts for a very long time. Even today, live, unexploded bombs from WWII are sometimes dug up at construction sites in Britain.
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I understand you undertake to undermine my undertaking
