(US$ 15.85 billion)‚ Hindalco is the world’s largest aluminium rolling company and one of the biggest producers of primary aluminium in Asia. Its Copper smelter is the world’s largest custom smelter at a single location. Figure 1 shows the various companies owned by Hindalco. Figure 1: Companies under Hindalco Industries [20] HISTORY Hindalco was incorporated in 1958. In 1962‚ the late Mr. G.D. Birla set up India’s first integrated aluminium facility at Renukoot‚ in the eastern fringe of Uttar
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Global Aluminium Market Background: Aluminium is a lightweight‚ durable and corrosion resistant metal that can be extruded‚ rolled‚ formed and painted for use in a wide range of applications. According to the International Aluminium Institute‚ approximately 66% of global consumption is used in the construction‚ transportation and packaging sectors while the remaining 34% is used in consumer‚ capital goods and electricity transmission. Aluminium is produced from alumina
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Preparation of Potash Alum A PROJECT REPORT SUBMITTED TO CHEMISTRY DEPARTMENT DIST: AMRELI GUJARAT BY:-ANURAG AGARWAL ROLL NO: XII SCI. 2009-2010 PRINCIPAL INTERNALEXAMINER EXTERNAL EXAMINER CERTIFICATE Certificate This is to certify that this project work is submitted by ANURAG AGARWAL to the Chemistry department‚ Aditya Birla Public School‚ Kovaya was carried out by him under the guidance & supervision during academic year 2008-2009
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millions of pounds each year‚ either through replacing things or through trying to prevent it happening in the first place. Figure 1: Bike rusting. In this booklet you learn about rusting and ways of stopping it‚ followed by a look at another metal‚ aluminium that is surprisingly resistant to corrosion. Rusting Rust is the name we give to the substance formed when iron corrodes. The same applies to most types of steel‚ as they consist mainly of iron. We all know that things tend to go rusty if they
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occurring. Ore - Any mineral or combination of a mineral and other substances from which a valuable‚ useable substance can be obtained (usually metals). 2. Describe the extraction processes‚ including chemical equations‚ of copper and aluminium and describe the environmental impact of these extraction processes. Copper There are two main methods used to extract copper from its ores. Generally‚ copper is extracted using the Pyrometallurgical method (also known as smelting)‚ which allows
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Technology is not upgraded to mark as compare to global giants in aluminium industry. OPPORTUNITY * R & D collabratation with universities and another research organization. * More emphasis on downstream production of value added products. * Recycling should be adopted as routine production. * Raising more finance from marketing for more acquisition and merger for consolidating position in the global market. * Aluminium‚ continuous to be strong with a growth in transportation sector
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Incorporated in 1981‚ as a public sector enterprise of the Government of India National Aluminium Company Limited (Nalco) is Asia’s largest integrated aluminium complex‚ encompassing bauxite mining‚ alumina refining‚ aluminium smelting and casting‚ power generation‚ rail and port operations. Commissioned during 1985-87‚ Nalco has emerged to be a star performer in production and export of alumina and aluminium‚ and more significantly‚ in propelling a self-sustained growth. The main units of NALCO
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Extraction of Aluminium Aluminium ore is called bauxite. Bauxite contains aluminium oxide‚ water‚ iron oxide and other impurities. The purified dry ore‚ called alumina‚ is aluminium oxide (Al2O3). The alumina must be molten for electrolysis to work‚ since the ions are not free to move in the solid state. Unfortunately‚ alumina has a high melting point (2040 °C) and it is not practical to do electrolysis at such a high temperature. In the middle of the nineteenth century it was found that alumina
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EFFECTS OF CORROSION • ELECTROCHEMICAL EFFECTS • FACTORS AFFECTING CORROSION • THE RUSTING OF IRON • IDENTIFYING ANODES & CATHODES • DIAGRAMMATIC SUMMARY • DIFFERENTIAL AERATION • DIFFERENT METALS IN CONTACT • CORROSION PROTECTION • THE CORROSION OF ALUMINIUM • THEORY SUMMARY • REVISION TEST • REVISION TEST ANSWERS 2 3 4 5 6 7 7 8 9-10 11-12 13-16 17 18 19-20 21 © JAK CHEMISTRY LEVEL 3C (CHM 315109) CORROSION (CRITERION 5) INTRODUCTION: Corrosion is a general term referring to the DESTRUCTIVE
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significantly very competitive without sacrificing quality relative to other techniques; and as such is the most attractive manufacturing process in the industry. These findings can be used for future design and manufacture of an efficient and effective aluminium matrix composite brake rotor for automotive and other applications. Keywords: metal matrix composite; brake rotor; product life cycle; historical development INTRODUCTION For the past 40 years‚ materials design has shifted emphasis on pursuing light
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