Extracting Metals

Mind Map by , created over 5 years ago

GCSE Chemistry Mind Map on Extracting Metals, created by emtheballerina on 04/15/2014.

Created by emtheballerina over 5 years ago
Using GoConqr to study science
Sarah Egan
Acids and Bases quiz
Derek Cumberbatch
Acids and Bases
Sarah Egan
Prática para o TOEFL
Macbeth - Charcters
Chemistry revision: Arguments for and against quarrying, etc.
Abdul Raja
Physical properties of metals
Lavinia Hayde
Group 2- Alkaline Earth Metals
Eleanor H
Trends across period 3
Irene Binil
Chemistry 3 Extracting Metals Core GCSE
Chloe Roberts
Extracting Metals
1 Limestone
1.1 Quarries
1.1.1 Noisy
1.1.2 Creates Jobs
1.1.3 Pollution
1.1.4 Better Healthcare
1.1.5 Damages Landscape
1.1.6 Improves Transport Links
1.1.7 Lots of Traffic created
1.2 Cement
1.2.1 Result of Heating Limestone and Clay Limestone= Calcium Carbonate Calcium Carbonate =
1.2.3 Mortar Mixing Cement, Sand and Water DOES NOT DRY OUT Binds bricks together
1.2.4 Concrete Very Strong DOES NOT DRY OUT Mixing Cement, Sand, Gravel and Water Used in foundations for buildings/bridges
1.3 Ores
1.3.1 Only used when the ore contains enough metal to make extraction worthwhile
1.3.2 Metal Oxides Can be SMELTED directly Smelting The Ore is crushed and concentrated to remove rock containing little/no metal Changed into metals by REDUCTION Reduction Removing the Oxygen from the compound Heating in a furnace with carbon IF the metal is below carbon in the reactivity series Limestone is added to remove impurities from the ore which forms slag Metals ABOVE Carbon in the reactivity series are extracted using ELECTROLYSIS Electrolysis produces Oxygen Gas
2 Iron
2.1 Blast Furnaces
2.1.1 Iron Ore, Coke and Limestone are fed into the top of the blast furnace
2.1.2 Molten Iron and Slag collect at the bottom
2.1.3 Carbon Monoxide is produced from burning Oxygen and Coke Coke = pure Carbon Carbon Monoxide reduces iron oxide to iron, and is oxidised to carbon dioxide
2.1.4 Produces iron
2.1.5 produces carbon dioxide Carbon Monoxide reduces iron oxide to iron, and is oxidised to carbon dioxide
2.2 Limestone reacts with impurities and creates slag which floats on top of the iron
3 Oxidation
3.1 oxygen is added to a substance
4 Reduction
4.1 oxygen is removed from a substance