Aluminium Ore
Introduction:
Metals are currently in high demand by society. A high percentage of common everyday items you use and see utilises a form of metal. That wooden table in a common kitchen that looks like it is made completely of wood. Metals are still used in that "completely wooden table" as the screws used to hold it together are made of metals. Many commonly used metals such as iron, aluminium, and/or copper are all found from ores. An ore is a mixture in the form of a rock that is mined. For example, bauxite is an ore that contains a high percentage of pure aluminium. That pure aluminium is then extracted, refined, and crafted in to many everyday items such as cars, foil, and ladders. Chemists are continuously researching an innovative approach to extract and refine pure metals from ores while using fewer amounts of energy. Society's requirement of metals is increasing by the year as science and technology advances.
Uses Of Aluminium In Society:
Society uses the metal element, aluminium, in various different methods. Transportation is a necessity in modern societies; what do buses, airplanes, cars, bikes, and scooters all have in common? They all are manufactured using aluminium. Aluminium is a light, durable, and supple metal. Since a greater mass reduces the velocity of a car, heavier cars require more fuel to achieve higher velocities. Aluminium, a light and durable metal, is now commonly used in the production of cars to decrease the usage of fuel (www.hydro.com). Moreover, aluminium foil is also a product in high demand by society. It is a metallic element that prevents greenhouse gases, unwanted odour molecules, and unwanted flavours molecules from entering protected food. The conductivity of aluminium resis...
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...it is one of main metals used in the manufacturing of products in high demand by modern society. The process of extracting pure aluminium from mined bauxite is a complicated step-by-step procedure researched and produced by chemists. Aside from aluminium itself, bauxite mines have its disadvantages as well including environmental issues, health related issues, and aesthetical impairments. An example of an environmental issue would be air pollution. Diseases such as silicosis (a respiratory disease) can be induced from the inhalation of mining dust. Bauxite mines are generally found around the equator in tropical regions. To create space for these mines, lush areas of nature would have to be removed. This causes aesthetical impairment for visual enjoyers. As aluminium's demand in society rises, so will its advantages, disadvantages, and scientific research.
For example, gold mines could be found in places like Macedonia while copper mines could found on the islands of Delos or Eretria. Also, it is important to note that bronze is a mix of tin and copper so it can not be mined directly from the earth. These metals were primarily used for the production of arms and currency during this time period. These metals were often found through underground mining, also known as deep vein mining. This type of mining was tedious and could only be done through excavation and tunnel building. These tunnels eventually emptied into galleries where ore was obtained, washed and melted. There was often a “relay of miners carrying ore out on their shoulders” while other times wheeled carts were used. Another type of mining was surface mining where ore surfaced in streams or on the ground and collected. An example of surface mining is placer deposits where streams broke up the ore and the dense pieces would settle at the bottom. The Greeks were very intelligent and could tell the “affinity for one type of metal for another” or would follow the placer deposits to the source. Because of the presence of water previously, sometimes the mine was forced to be abandoned because of the lack of control of the water. The Romans attempted to counteract this by digging drainage adits to divert water and filtering the water by percolation. Slaves would often carry the water away with
A bauxite is a mixture consisting of hydrated aluminum oxide minerals and mineral impurities which are formed by weathered aluminum bearing rocks. In 1891 bauxite was mined in Alabama from the Rock Run. However, mining came to a sudden stop because metallurgical grade bauxite became very hard to obtain. Production started back up in 1927 and has been running on a maintained basis. Due to irregular distributions of bauxite deposits, exploratory test drilling must be conducted before any mining. Alabama bauxite is used in the making of high temperature products, abrasives, and chemicals. (Tew, 6)
Roughly thirty years ago, iron started to become scarce across the globe. The value of iron rose considerably, and soon became more valuable than gold. As you know, we use iron to make steel, which builds buildings, roads, and basically any form of infrastructure you can
Our entire lives have been shaped by the events happening around us. Along with us many factors in our day to day lives have evolved too, including musical genre. One such genre is rock. Rock is a genre for the youth, by the youth, it has evolved to stay with the times and stand up for what’s right. In this essay I will prove why rock is a good example to show how genre has been defined, maintained, constructed and negotiated through the past 60-70 years since the very first Proto Rock song came out.
The lyrics of metal music are often misunderstood to be a call to action, advocating violence to listeners. In reality the lyrics are meant to comfort the listeners and help them deal with the negative emotions they feel from this situation. Especially amongst teens who most frequently feel the negative effects of being different. The most musically "heavy" kind of metal there is is called death metal. Originally, the name was coined because of the lyrics of this subgenre of metal. The lyrics dealt with death caused by, murder, war, and any other kind of unnatural death imaginable. Now, the name is used to refer to a kind of metal with especially driving rhythms, energetic instrumentation and vocals (usually of the screaming and grunting sort), and incredibly low end and heavy sounds. Death metal is basically as far as you can go into the genre of metal. Even in this subgenre, the lyrics often spread positive messages.
Where the minerals that America uses came from? Americans use and waste large amounts of substance and material every day. Most people disregard and ignore the places where this material may come from. Putting little to no time into researching on the subject, makes it difficult to ever figure out and appreciate the stories and history behind our beloved substance and consumption of it. But actually putting the effort of working and looking into it, someone may be pleasantly surprised at the amount of backstory on it, and may find it rather interesting. So if someone were to say, look into the history of the Berkeley pit. They would most likely find plenty of sources explaining how it supplied copper and many minerals for the U.S. for years. Of course anyone who already knew information on the pit could tell you its amazing and introcut stories of how it came to be, and how it has been doing over the years. The pit is a “toxic attraction” in the town of Butte. Being the town’s income and source of tourism. Most people in Butte Montana, the home of the pit, could tell how amazing it is.
Pounding metal and fabricating metal in thin sheets and sections that humans need or want has a long history. The discovery of how to make and control fire made extracting metals form or more efficient instead of having to find almost pure nuggets of metal. In many civilizations copper was the metal they used but that was succeeded by bronze eventually it is made of copper and tin.
Iron is the fourth most abundant element in the Earth’s crust. Because it is so common, iron has been used by human society for thousands of years. Iron was known and used for weapons in prehistoric ages, the earliest example still in existence; a group of rusty iron beads found in Egypt, dates from about 4000BC. This period in history was given the name Iron Age because it was the time when people found ways to get iron and to use it for building tools and weapons.
Due to the natural processes of magma flow, hydrothermal gradients, sedimentation, and evaporation, minerals are concentrated in various areas of the Earth’s crust. Obtaining these minerals for human use involves four general steps. • Locating the minerals • Then, extracting the minerals from the Earth in the form of ore or rock Then, processing (smelting) the ore to separate the impurities from the desired mineral. Finally, creating a useful product from the minerals. Procedure 1.
Stainless steel, especially, Austenitic stainless steel, because of their high corrosion resistance and customizable mechanical properties has become an indispensable part of the regularly evolving modern day technology. Stainless steels of various grades find applications in numerous fields starting from the household to the nuclear reactors; from food and beverage cans to construction of different automobile parts. The formation of impervious oxide layer on the surface makes it suitable for use in adverse environments such as sea water.
Everyone has a favorite type of music. Many people follow music closely and have unique tastes. Some people find genres and mixes of genres that they like. People find other people who share these musical interests. People who immerse themselves in a genre or performer find the live performance particularly meaningful and seek out those artists in concert. Music concerts are some of the biggest and most attended events in our modern culture. These are venues where people come together and express themselves through movement and sound. Individuals transcend their everyday experience, connecting to the performers and each other. The experience of the performance and the energy around you is addictive. It’s almost religious. The desire to return to that “mountain top” is powerful. And for how powerful it is to the crowd, it is so much more invigorating for the performers up on stage doing what they love. What if the high just isn’t there the next time? What if a tolerance starts to build up? That’s when many begin to add narcotics into the experience, to rebirth that feeling. Music has been a vital part of culture, and drugs have always been involved in and around both music and culture, effecting the music and the youth listening to it.
Though it has had many negative impacts on the environment in the past, mining is a vital industry completely necessary to our economy and lives. Nearly every item we use or encounter in our day to day lives is mined or contains mined products. Without the excavation of such materials things like computers, televisions, large building structures, electricity, and cars would not be possible. Virtually every technological and medical advance uses minded materials, without which millions would suffer. Some examples of minerals in the home include the telephone which is made from as many as 42 different minerals, including aluminum, beryllium, coal, copper, gold, iron, silver, and talc. A television requires over 35 different minerals, and more than 30 minerals are needed to make a single personal computer. Without boron, copper, gold and quartz, your digital alarm clock would not work. Every American uses an average 47,000 pounds of newly mined materials each year, which is higher than all other countries with the exception of Japan, which is a staggering figure representative of our dependence and need for mined minerals. Coal makes up more than half of nation’s electricity, and will continue to be the largest electrical supplier into 2020 & accounting for some 95 percent of the nation's fossil energy reserves – nine of every ten short-tons of coal mined in the United States is used for electricity generation. As the population of the world grows more mineral resources must be exploited through mining in order to support the rising demand for such products. Though it may present a hazard to the environment and those physically located nears the mines, the materials extracted from mines...
Aluminum is an element in the boron group with a symbol of Al, and an atomic number of 13. Aluminum is a very soft metal when pure but becomes strong and hard when alloyed, a malleable metal with a silvery gray color. Aluminum is a very reactive element so it is found in nature combined with other elements. Aluminum resists corrosion by the formation of a self-protecting oxide coating. Aluminum is the third most abundant element in the Earth’s crust, following oxygen and silicon. It makes up approximately 8% by weight of the Earth’s surface. Although this is evident, it is also apparent that aluminum is never found by itself in nature. All of the earth’s aluminum has combined with other elements to form compounds and in order to create new aluminum products; it has to be taken out of that specific compound. Aluminum does not rust like other elements, therefore it always remains strong and shiny, which means reused aluminum is almost identical to a brand new piece of metal. An electrochemical process creates aluminum. An electrochemical process is “the direct process end use in which electricity is used to cause a chemical transformation” ( E.I.A. Government). Major uses of electrochemical processes occur in the aluminum industry in which alumina is reduced to molten aluminum metal and oxygen, where than the aluminum can be used into making several different materials. Electrochemical processes, although very useful, can have serious environmental consequences. To help reduce the consequences that the production of aluminum creates, the idea of aluminum recycling comes into play.
In our days, mining for resources is inevitable. The resources we need are valuable in everyday life. Such resources mined up are coal, copper, gold, silver, and sand. However, mining poses environmental risks that can degrade the quality of soil and water, which can end up effecting us humans if not taken care of and many of the damages are irreversible once they have occurred.
Materialism is very complex, and can be defined on a number of different platforms. There is no one definite definition of materialism, meaning there is an ambiguity surrounding the construct of materialism. According to Kasser et al. (2004), consumers develop a materialistic value orientation at times when they experience feelings of insecurity, and from exposure to materialistic models and values. When the psychological needs of individuals are not met, they tend to move toward materialism in order to help them feel better about themselves, and reduce feelings of insecurity and self-doubt through the consumption of materialistic items.