Blast Furnace Gcse Chemistry Coursework
2. Extraction of Iron and Steelmaking
Doc Brown's GCSE/IGCSE O Level KS4 science–CHEMISTRY Revision Notes – Mining of Minerals and Methods of Extracting of Metals
How do we extract iron from its mineral ores like the iron oxide ores haematite and magnetite? How do we convert it into steel? The raw materials needed i.e. limestone, coke, air and iron ore and the chemistry of the blast furnace are fully described. Why convert iron into steel? How do you make steel? The manufacture of steel alloys is further described. Scroll down for revision notes on extraction procedures and theory which should prove useful for school/college assignments/projects on ways of extracting metals from their ores.
Equation note: The equations are often written three times: (i) word equation, (ii) balanced symbol equation without state symbols, and, (iii) with the state symbols (g), (l), (s) or (aq) to give the complete balanced symbol equation.
These revision notes on the extraction of iron in a blast furnace and the process of steel making and other alloys should prove useful for the new AQA, Edexcel and OCR GCSE (9–1) chemistry science courses.
Metal extraction index
1. Introduction to Metal Extraction
2. Extraction of Iron and Steel Making (this page)
3. Extraction of Aluminium and Sodium
4. Extraction and Purification of Copper
5. Extraction of Lead, Zinc, Titanium and Chromium
6. Economic & environmental Issues and recycling
These are reactions that take in energy from the surroundings. The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to become colder. A thermometer is used to detect the temperature decrease.
Some examples of endothermic reactions are:
The slideshow shows an exothermic reaction between sodium hydroxide and hydrochloric acid, and an endothermic reaction between sodium carbonate and ethanoic acid.
1. Sodium hydroxide solution is poured into a beaker of hydrochloric acid which contains a thermometer showing room temperature
2. The beaker now contains sodium chloride and water, and the thermometer is showing a rise in temperature, so the neutralisation reaction is exothermic
3. Sodium carbonate powder is tipped into a beaker of ethanoic acid which contains a thermometer showing room temperature
4. The beaker now contains sodium ethanoate, water and carbon dioxide, and the thermometer is showing a fall in temperature, so this was an endothermic reaction