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Mining techniques can be divided into two common excavation types: surface mining (above ground) and subsurface (underground) mining.
sometimes subsurface mining is also called deep mining like in my text book p.s i am in 8th grade
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What two processes are used to extract metals?
There are 3 means of extracting metals that are used more than any others and they are: Reduction with carbon: An ore of a metal which is less reactive than carbon is heated with carbon and the more reactive carbon will separate the metallic element from its ore e.g extraction of Iron in a blast furnace Electrolysis: An electrical current is passed through a solution of the metal ore and the metal is split from its ore and collects at an electrode, this is done for metals more reactive than carbon Extraction by other metals: As some metals are more reactive than the other this can be used to split up the metallic ore, an example of this is the extraction of Titanium which involves the use of several other more reactive metals.
Which metal out of copper and iron is the easiest to extract from it's ore?
yes, it is quite easy to remove cu from its ore because cu is less reactive so less energy is required i.e.it can be removed from its ore by just heating its ore in air for two to three times.
In order for a rock to be consider and ore it must?
Ore is rock from which a metal or valuable mineral can be extracted. Iron ore, copper ore are two examples.
Aluminium oxide can be separated by electricity?
there are two ways of extracting aluminum from its ore 1) old way: - displacement reaction ex: - Na + Al2O3 ==> Na2O + Al 2) new way: electrolysis electrolysis: - is a way of extracting highly reactive metals from their ore using electricity. so the short answer is YES
Production of pig iron from iron ore?
Smelting is a major industrial process, known of from early times. It involves the recovery of metal (say) from its ore, using perhaps coke , high grade coal, or charcoal. Done in an oxidizing atmosphere to remove as much impurity as possible, and accompanied by a flux material such as limestone. The flux reacts with many of the impurities and becomes a waste material. Today, electric arc furnaces are often used to smelt iron and other metals.
What two processes are used to extract metals?
There are 3 means of extracting metals that are used more than any others and they are: Reduction with carbon: An ore of a metal which is less reactive than carbon is heated with carbon and the more reactive carbon will separate the metallic element from its ore e.g extraction of Iron in a blast furnace Electrolysis: An electrical current is passed through a solution of the metal ore and the metal is split from its ore and collects at an electrode, this is done for metals more reactive than carbon Extraction by other metals: As some metals are more reactive than the other this can be used to split up the metallic ore, an example of this is the extraction of Titanium which involves the use of several other more reactive metals.
What are two main methods of metal extraction?
Some metals can just be mined since they do not form oxides or compounds, such as gold. Other metals form compounds which need further processing, such as lead and titanium. Iron ore is usually just heated until molten. This is smelting.
What chemical processes are used to create fragrant oils?
Two methods are used: solvent extraction or water vapor extraction.
What is the difference between isolation an extraction?
Isolation is the process of the seperation of the two metals but extraction is the process in which we get the desired metal from the concentrate.(in general we can say from the minerals and ores)
How is platinum mined?
Ore leaves the mine to be refined.The first step in the mining process is getting the platinum ore out of the ground and into a refinery or processing plant. Two methods exist to extract platinum ore: the old "narrow reef method" and newer mechanical mining methods. The original "narrow reef method" consists of drilling holes, loading them with explosives and removing the ore once it's blasted free.Newer methods utilize specialized drilling equipment to remove the ore and load-haul-dump machines to transport the ore from the mine. Platinum may be mined using traditional open-pit strip-mining methods or underground mining methods, depending on where the vein is located.Extracting pgm from the rest.Once it's mined, the extraction process begins. The platinum ore is first crushed to produce tiny particles suitable for further treatment. The next step is the flotation separation method, which relies on air particles bubbling through an aeration tank to adhere to pgm particles and float them to the top of the tank. They form a froth at the top of the tank, which is then skimmed off for refining.Concentrating pgm.The concentration process requires smelting the dried pgm froth at high temperatures to separate the pgm further from unwanted materials. Other minerals oxidize and are removed. The pgm is then treated with air to blow out particles of iron and sulfur in order to further concentrate the platinum group metals.Refining platinum.After mining, extraction and concentration, platinum group metals must be refined. This is another step that removes nickel, copper and cobalt from the other pgm. Electrolytic techniques remove the copper, cobalt and nickel from platinum group metals. Finally, a series of ion-exchange techniques, distillation and solvent extraction occur. Soluble metals, such as gold, are dissolved in hydrochloric acid and chlorine gas, and finally only platinum remains.
Is platinum mined?
Ore leaves the mine to be refined.The first step in the mining process is getting the platinum ore out of the ground and into a refinery or processing plant. Two methods exist to extract platinum ore: the old "narrow reef method" and newer mechanical mining methods. The original "narrow reef method" consists of drilling holes, loading them with explosives and removing the ore once it's blasted free.Newer methods utilize specialized drilling equipment to remove the ore and load-haul-dump machines to transport the ore from the mine. Platinum may be mined using traditional open-pit strip-mining methods or underground mining methods, depending on where the vein is located.Extracting pgm from the rest.Once it's mined, the extraction process begins. The platinum ore is first crushed to produce tiny particles suitable for further treatment. The next step is the flotation separation method, which relies on air particles bubbling through an aeration tank to adhere to pgm particles and float them to the top of the tank. They form a froth at the top of the tank, which is then skimmed off for refining.Concentrating pgm.The concentration process requires smelting the dried pgm froth at high temperatures to separate the pgm further from unwanted materials. Other minerals oxidize and are removed. The pgm is then treated with air to blow out particles of iron and sulfur in order to further concentrate the platinum group metals.Refining platinum.After mining, extraction and concentration, platinum group metals must be refined. This is another step that removes nickel, copper and cobalt from the other pgm. Electrolytic techniques remove the copper, cobalt and nickel from platinum group metals. Finally, a series of ion-exchange techniques, distillation and solvent extraction occur. Soluble metals, such as gold, are dissolved in hydrochloric acid and chlorine gas, and finally only platinum remains.
Can alloys be made on earth?
Alloys are a mixture of two or more metals. Man made alloys include brass and bronze. In nature alloys occur in almost any case there a metallic ore is found. Gold contains traces of lead, nickel ore contains many other metals and copper ore is specifically treated to remove more valuable metals present in the ore.
What two proposed methods of returning profits from commercial fisheries to the public are?
Cost-recovery and Rent extraction
What types of ore that contains iron?
An ore is a rock that contains minerals that are useful. For an ore to be considered an ore reserve, it must be economically viable (the value of the extracted mineral must exceed the cost of extraction and processing) and must be technically and legally possible to extract.
What is the different bonding methods of elements?
There are two kinds of bonding; ionic and covalent. Ionic bonds form between metals and non-metals. Covalent bonds form between non-metals
Does metals come from plants?
No metal is a organic life form, Not a mine shaft with rare earth minerals. Ore and plants are two very different things..
Are people made out of metal?
Metal in its natural state is a mineral occurring in the form of ore. It then needs to be mined, extracted from the ore and processed to make whatever. So a metal object is man made from a naturally occurring material. Unless of course it was made by a woman.
