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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.
4,677 Questions
No, feldspar is not a metal. It is a group of minerals that are commonly found in the Earth's crust, and they are typically made up of aluminum, silicon, and oxygen.
Production of nickel metal from nickel sulphides by using Sherritt Gordon process?
The Sherrit Gordon process is one of the options for the processing of nickel sulfides. It is the first successful commercial application of pressure hydrometallurgy to a complex feed. The raw material is a pentlandite, NiS·FeS, concentrate which has been concentrated by various other processes.
What Methods Can Be used To Extract Metals From Ores?
There are three basic ways of treating metallic ores in order to extract their metal content. Pyrometallurgy is the treatment of metals and their ores by heat. Pyrometallurgy includes Roasting, which is the heating of ores in air or heating it with a reducing agent such as carbon (coke) or carbon monoxide. Pyrometallurgy is the oldest extractive process. In early day Nevada, carbon was obtained from pinyon pines, juniper trees or sagebrush. The wood was collected and heated in ovens which resembled beehives and these ovens became the "Beehive Ovens" found today near numerous old mining camps.
The second basic way of treating metallic ore is electrometallurgy. In this method the metals are processed using electricity such as electroplating and electrorefining. Electric arc furnaces are used to make steel. Electrometallurgy is used when very high purity metal is needed.
The third basic way of treating metallic ore is hydrometallurgy. This is a wet process as the name implies, where reactants are used in a water solution. This method has not been used on an industrial scale due to the high costs involved. However, as the concentration of desired metal becomes less in the ores mined, the wet processing of the more valuable metal ores becomes more feasible
How do you separate gold from rock or it's ore?
One of the most popular ways of separating gold from rock, is gold panning, and it is a very big tourist attraction in Kalgoorlie WA (Australia).
Gold panning usually takes place on the inside bend of a stream, and a wide and shallow pan is used. The pan is filled with rocks and gravel that might have gold concealed within them. The gravel, rocks (and possibly gold) is submerged in water, letting the much denser gold sink underneath the rocks, making it easy to collect.
Gold mining is the process of extracting gold from the ground. It involves various methods such as panning, sluicing, and using heavy machinery to dig and extract gold ore. Gold mining can have environmental impacts such as habitat destruction and water contamination.
What is a natural source of aluminum?
Bauxite ore is the primary natural source of aluminum. It is a sedimentary rock that contains a high amount of aluminum hydroxide minerals, which are processed to extract aluminum metal.
What gas is released in the process of smelting?
Carbon dioxide is released during the smelting process as a result of chemical reactions with carbon-based materials used in the process.
Pyrite was not discovered by a single individual, as it is a naturally occurring mineral that has been known and used by humans for thousands of years. It has been found in various parts of the world and has been used for various purposes, including as a source of iron and as a decorative material.
Mining involves extracting ores from the ground, smelting involves heating the ores to high temperatures to separate the desired minerals or elements from the impurities, and refining involves further processing to purify the extracted materials into their final usable form.
Rubies are mined in countries such as Myanmar, Thailand, Sri Lanka, and Madagascar. Myanmar, formerly known as Burma, produces some of the finest rubies in the world, particularly from the famous Mogok region.
Is sponge iron susceptible to Spontaneous Combustion?
nothing is susceptible to spontaneous combustion
The common fine-grained blue-gray mudstone which is part of many of the coal beds of England.
A hard rock, bluish in color, which is crushed and used in macadam.
The byproduct Blue Metal may replace sand and will be an artificial sand and will be used in construction of buildings.
it is a stone used to build houses
Sulfide is a chemical anion composed of one sulfur atom and two electron-rich or negatively charged atoms. It is commonly found in minerals, ores, and some natural gases. Sulfides can also refer to compounds that contain the sulfide ion.
Wulfenite typically forms as a secondary mineral in the oxidation zones of lead deposits. It forms when lead-containing minerals are weathered and altered by oxygenated groundwater, leading to the precipitation of lead molybdate. This process often occurs in arid desert environments.
Is solid nickel silver valuable?
Solid nickel silver, also known as German silver, is not valuable in terms of precious metals like silver or gold. It does not contain any actual silver, but it is used as a base metal in a variety of applications due to its corrosion resistance and strength. Its value lies more in its utility rather than its intrinsic worth as a precious metal.
What is the natural source for calcium carbide miners gas?
Calcium carbide is a chemical compound that reacts with water to produce acetylene gas, which is combustible and is used in mining lamps. The gas also encourages fruit growth in plants such as pineapples. Calcium carbide is used in making steel, PVC, signal flares and some old-fashioned fireworks, in addition to mining.
Calcium carbide is man-made. It is produced in a 2000º electric arc furnace. There is no "natural source" for the substance. You cannot go dig it up somewhere. If you could, it would be a clear or bluish crystal, rather soft, with an unpleasant odor.
I would go into the science of it in more depth, but the foregoing answers the question asked and you don't need to be a chemistry major to understand it. :)
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I'd be very surprised if miners still use acetylene lamps! They were used by miners in gas-free ground (usually metal-ore mines and underground stone quarries) many years ago. They were used by many cavers until electric lamps (usually ex-colliery) became common in the 1960s, then had a brief flurry of popularity again in the 1980s-90s when developments in caving techniques and equipment meant the electric mining lamps were no longer safe to use due to their liquid electrolytes . Now acetylene lamps are pretty well obsolete, displaced in mining and in caving by l.e.d lamps; and suppliers of calcium carbide are becoming hard to find.
Potash (potassium carbonate) is both mined and made.
Potash (potassium carbonate) and soda (sodium carbonate) have been used from the dawn of history in bleaching textiles, making glass, and, from about A.D. 500, in making soap. Soda was principally obtained by leaching the ashes of sea plants, and potash from the ashes of land plants. In their uses, potash and soda were largely but not entirely interchangeable. Indeed, before the mid-eighteenth century, people only vaguely differentiated between the two.
Potash-making became a major industry in British North America. Great Britain was always the most important market. The American potash industry followed the woodsman's ax across the country. After about 1820, New York replaced New England as the most important source; by 1840 the center was in Ohio. Potash production was always a by-product industry, following from the need to clear land for agriculture.
Most of the world reserves of potassium (K) were deposited as sea water from ancient inland oceans evaporated, and the potassium salts crystallized into beds of potash ore. These are the locations where potash is currently being mined today. The deposits are a naturally-occurring mixture of KCl and sodium chloride (NaCl), better known as common table salt. Over time, as the surface of the earth changed, these deposits were covered by thousands of feet of soil. Most potash mines today are deep shaft mines as much as 3,300 feet underground. Others are mined as strip mines, having been laid down in horizontal layers as sedimentary rock. In above-ground processing plants, the KCl is separated from the mixture to produce a high analysis natural K fertilizer. Other naturally occurring K salts can be separated by various procedures, resulting in potassium sulphate and potassium-magnesium sulphate.
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What is the name of silver ore?
The name of silver ore is typically called "silver ore" or "native silver."
What does hardness of a mineral mean?
The hardness of a mineral is a measure of its resistance to scratching. It is quantified using the Mohs scale, which ranges from 1 (softest, such as talc) to 10 (hardest, such as diamond). Hardness can help identify minerals by testing how easily they can be scratched by other substances.
Where does silica sand come from?
Silica sand is typically found in areas with high concentrations of quartz, such as deserts and beach dunes. It is formed by the erosion and weathering of quartz-rich rocks over time, and can also be produced through industrial processes like crushing and washing silica-rich rocks to extract the sand.
Coal mining involves extracting coal deposits from the earth to be used as a source of energy. This is typically done through either surface mining, where coal is excavated from the surface of the earth, or underground mining, which involves digging tunnels and shafts to reach coal seams deeper underground. Once the coal is extracted, it is processed and transported for various uses, such as electricity generation or industrial processes.
Natural gas is extracted from underground reservoirs using drilling techniques such as horizontal drilling and hydraulic fracturing (fracking). These methods involve drilling a well into the gas-bearing rock formation and using a combination of water, chemicals, and sand to fracture the rock and release the gas. The gas is then brought to the surface through the well and transported via pipelines for distribution.
What two chemicals can reduce iron ore to iron?
Carbon monoxide and hydrogen are typically used in the reduction process of iron ore, where they react with the iron oxide to produce metallic iron. This process is commonly known as the direct reduction process or the Midrex process.
How is quartz different from other silicate minerals?
Quartz is made up of silicon and oxygen (SiO2) and has a distinct crystal structure. It is one of the most common minerals on Earth and has a wide range of colors and varieties. Unlike other silicate minerals, quartz is highly resistant to weathering and is very hard (7 on the Mohs scale).
