Essay --

Extraction of iron to steel The Earth is mined to obtain the rocks that containing iron ore. Then the iron ore was transferred to factory to be extracted. In order to get the iron, we have to extract them from the iron ore. Heamatite (Fe2O3) and Magnetite (Fe3O4) are two common iron ores that usually used. In this assignment, we will use the equation of heamatite. Figure shows a Blast furnace Taken form : http://www.chimicamo.org/chimica-generale/ferro-produzione.html The iron ore, limestone and coke are burn together inside the furnace. The hot air that goes inside the furnace from the bottom is heated up by the heat that escape from the top. This process is to ensure that heat are not wasted because heat is a essential in this process. The coke, (fuel with few impurities and highly carbon content, usually made of coal –Wikipedia) which burns in the blast of hot air gives out carbon dioxide under an extreme exothermic reaction, is the main source of heat in the process. ( C + O2 = CO2) At bottom where high temperature is, carbon will react with carbon dioxide to form carbon monoxide. Carbon monoxide is the main source of reducing agent. ( C + CO2 = 2CO) The carbon monoxide will react with iron ore, haematite to form iron and carbon monoxide. ( Fe2O3 + 3CO = Fe2 + 3CO2) In hotter part of the furnace, carbon itself can be a reducing agent but the product is carbon monoxide instead of carbon dioxide. (Fe2O3 + 3C = Fe2 + 3CO) The iron that results from the process is molten due to the high temperature at the bottom of the furnace. They will tapped off from the furnace at the bottom. Iron ore does contain impurities. The limestone that are added together with iron ore and coke is used to eliminate the impurities because they... ...gulation should be done regularly by the officers. Any factory that does not follow the regulation should be given a notice to shut down its operation within 24 hours until the solution to the pollution problem have been taken. The factory should be sued due to their mistake. This will educate other factory to take care the environment. By doing so, we could minimize the water pollution and save aquatic life. Clean water source also will be guaranteed safe if there is not pollution. Those are three action that the government should take in order to prevent more pollution caused by the iron industry. There are more suggestion that government can take, but it does not change anything if government itself does not take any action. Our government should take action now so that future generation does not blame us due to the pollution that they may encounter in future.