Alice,Cara,Paige,Steph+and+Kim+Q&A

__ Coke To Coke – Chapter 1 __ - The three main ingredients in Iron are Iron Ore, Coke and Limestone (to remove impurities). As well as these, gases such as Oxygen. - Iron ore comes primarily from three countries: China, Brazil and Australia. These countries produce a combined total of 990 Million Metric tons. I can’t find the largest producers of Limestone (a large amount of limestone can also be extracted here in the UK- Mr Conway) but one the largest producers of coke (coal) is right here in Britain. All these commodities are transported by trucks and huge transport ships. - Iron ore is processed while in the blast furnace with the limestone, as the limestone removes impurities which would damage the strength of the finished Steel. - In the iron smelting process each product has its own use. The Iron ore is iron, but surrounded by impurities which need to be separated off, as only the iron is needed. The Limestone is used to make the impurities have a lower melting point, and they will melt away from the iron that is needed. The coke is needed to make the furnace burn at a higher heat.

- Mining in the countries which supply iron ore could damage the environment, also transporting the raw materials creates more pollution, the machines that either transport or get the iron ore can destroy the landscape and release CO2 and other gases into the atmosphere.

- They use scrap as new metal will cost a lot to produce and will just be melted away. It is cheaper and easier to just recycle scrap. Advantages- The Basic Oxygen Furnace uses scrap metal because it is easier, cheaper and recycles scrap metal. Using scrap is much cheaper and new metal does not have to be produced- cutting down on pollution from production. Disadvantages- The metal isn’t as strong as it would be if it was new; because it has already been used.


 * __Chapter 2__**

Fe: - 1.898KG C: - 4.5KG Si: -all of Si is oxidised. Mn: - 0.2KG
 * || Composition of hot metal (%) ||
 * Fe || 94.9 ||
 * C || 4.55 ||
 * Si || 0.25 ||
 * Mn || 0.3 ||

The amount of steel produced is 93.26 KG. •  From Fe: 4.3 X 1.898 = 8.1614 •  From C: 11.7 X 4.5 = 52.65 •  From Si: 33.9 X 0.25 =8.475 •  From Mn: 7.4 X 0.2 =1.48 All four figures add up to: 70.6 Mj

Household 2000 x 32Mj= 64000Mj 64000/70.6= 906KG.

-Temperatur of the liquid steel-2083.5 degrees Celsius -Energy required to melt 1Kg of scrap-1359700/1000Kg= 1359.7Kj -How much scrap can be melted-19.9kg -Kg of steel produced-113.1kg -56 tonnes of scrap and 263.7 tonnes of hot metal -320/7= 45.7mcubed. -The equation for the surface of the ladle is  , in this case is equal to 12.56 cm squared. Using the answer from the last question- 45.7mcubed you can work out the height of the ladle: 45.7/ 12.56=3.63m cubed. Add on a 0.5m for spillage, makes the height of the ladle 4.13m cubed.