Download Policy: Content on the Website is provided to you AS IS for your information and personal use only and may not be sold or licensed nor shared on other sites. SlideServe reserves the right to change this policy at anytime. While downloading, If for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
1. Extraction of Aluminium Aluminium is extracted using electrolysis because it is too reactive to be extracted using carbon.
2. Raw materials Ore bauxite aluminium oxide
The ore is dissolved in cryolite to lower the melting point.
3. The electrolysis cell
4. Reactions in the cell At the cathode
Al3+ + 3e- ? Al
At the anode
2O2- ? O2 + 4e-
The oxygen formed reacts with the carbon anodes to form carbon dioxide.
They have to be replaced periodically.