Extracting Metals
- Created by: ukgamer321
- Created on: 04-05-14 11:01
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- Extracting Metals
- Displacement Reactions
- A more reactive metal will displace a less reactive metal from a comound
- Carbon (by reduction)
- all metals below carbon and above hydrogen
- In their native state so do not need to be extracted
- all metals below hydrogen
- Extracting Iron with a Blast Furnace
- 1. Iron Ore, Limestone and Coke (carbon) are added
- 2. Hot air is added (O2) which reacts with coke to form CO2
- 3. CO2 reacts with more coke and forms carbon monoxide (2CO)
- 4. Carbon displaces the Iron. Limestone reacts with impurities to form **** (used for roads)
- 3. CO2 reacts with more coke and forms carbon monoxide (2CO)
- 2. Hot air is added (O2) which reacts with coke to form CO2
- 1. Iron Ore, Limestone and Coke (carbon) are added
- phytomining
- 1.plants grown in copper rich soil which builds up on the leaves.
- 2. plants are harvested and burnt. Copper is collected from the ash
- 1.plants grown in copper rich soil which builds up on the leaves.
- Bioleaching
- Bacteria separates copper from copper sulfide
- the leachate (solution produced by process) contains copper which is extracted by filtering
- Bacteria separates copper from copper sulfide
- A metal alloy is a mix of two metals or a metal and a non metal. They are harder than pure metals
- eg iron and carbon=steel
- Here the smaller carbon atoms upset the layers of pure iron atoms so it's harder for them to slide over each other
- Low carbon steel is easily shaped
- high carbon steel is hard
- stainless steel is resistant to corrosion
- eg iron and carbon=steel
- Displacement Reactions
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