is by dissolving it in molten cryolite. Which has a lower melting point. Current price £1.53 for a kilo of aluminium. Iron is the second most common metal in the world and cheaper to extract than aluminium. It is extracted by using a blast furnace. Iron ores such as haematite contain iron oxide‚ the oxygen must be removed which then leaves the iron behind. This reaction is called a reduction reaction. Carbon is more reactiuve than iron so it can displace the iron and join with the oxide
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There was an industrial revolution in Britain because of many factors. An industrial revolution means the change of the whole industry in a country. This change affected all that was in the country and was mostly improvements that were made. Usually‚ production rate of many things increase due to maybe the demands of people are getting higher‚ or the population is increasing dramatically. The Industrial in Britain was caused by the increase of population‚ the increase of production (food/farming)
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him the stolen money he dropped. On the way to work bigger runs into G.H‚ Gus and Jack and buys them some cigarettes and beers. When he get to the Daltons house Peggy is about to clean the furnace but bigger offers to do it. In the furnace bigger sees an outline of Mary’s body so he refuels the furnace after that he puts Jan’s pamphlets in his room and then tends to the half-packed trunk that he is to take to the depot. Peggy tells bigger that the car has been out all night and bigger lies and
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Humidity & Relative Humidity Humidity is defined as the amount of moisture in the air. Air contains a certain amount of water vapor. The amount of water vapor any mass of air can contain depends on the temperature of that air. The warmer the air is‚ the more water it can hold. A low relative humidity means that the air is dry and could hold a lot more moisture at that temperature. For example‚ at 20 degrees C (68 degrees F)‚ a cubic meter of air can hold a maximum of 18 grams of water. At
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shuttering businesses that are no longer competitive and reallocating resources to specialty‚ higher-grade and value-added steel. Thus‚ the company has announced that it will build a new £15-million furnace at its Stocksbridge site in the UK‚ which it expects to commission in early 2015. The new furnace will enable Tata Steel Europe to address demand from
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CHAPTER 1 Introduction Some farmers who don’t have irrigation system‚ plant rice during rainy season so‚ they have the difficulty of drying their grains after harvest. Aside from these‚ drying the grains under sunlight takes longer time‚ more effort in handling to the drying site‚ scraping or ricking‚ guarding from animals‚ collecting after drying‚ and another is that the possibility of the grains to be mixed with stones‚ leaves of tree‚ and dust in road drying and field drying. There are many
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35% of its electricity from furnace oil that is mostly imported. Pakistan spends over 12 billion US dollars for the import of furnace oil high speed diesel and crude petroleum that amount is equivalent to 60% of total export earnings and is a serious strain on country’s economy. It was recorded that in year 2011‚ the import of furnace oil increased by 19% compared to 2010 import. Moreover‚ the imported furnace oil is high sulphur furnace oil because low sulphur furnace oil is costly. The gaseous emissions
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INTRODUCTION Pakistan State Oil (PSO) is the oil market leader in Pakistan enjoying over 78.2% share of Black Oil market and 54.3% share of White Oil market. It is engaged in import‚ storage‚ distribution and marketing of various POL products‚ including Mogas‚ Diesel‚ Fuel Oil‚ Jet Fuel‚ Kerosene‚ LPG‚ CNG and petro-chemicals. This blue chip company‚ the winner of "Karachi Stock Exchange Top Companies Award" and a member of World Economic Forum‚ has been a popular topic of case studies in Pakistan
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plants use different forms of technology‚ the Charleroi plant uses tempering the thick translucent glass while the Corelle plant uses a processes by pressing three layers of thin strengthened opaque glass together. In the Charleroi plant they have a furnace that has to run 24 hours a day and it is
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casting defects 5) Types of casting‚ and types of furnaces. Marks: 12 1) Explain brief in the gas welding processes with the suitable sketch. 2) Explain in detail Arc welding processes and write down the merits & demerits with sketch. 3) what is Permanent mould casting ? Write down its advantages‚ disadvantages‚applications and its operations 4) (i) Draw and explain the cupola furnace. (ii) Draw and explain the pit furnace. Unit – II Marks: 2 1) What is chip and its
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