Precious Metal Refining & Recovery, Episode 16: Aluminum From Dirt

2016-12-14

[public] 1.19M views, 30.8K likes, 300 dislikes audio only

I make aluminium metal from dirt.

there are a lot of chemicial reactions in this video, here is a list of the main ones:

feldspar to clay;

4KAlSi3O8 + 4H+ + 2H2O = 2K+ +Al4Si4O10(OH)8 +8SiO2

clay to aluminium hydoxide and silicious acid (unbalanced);

Al4Si4O10(OH)8 + H2O + H+ = Al(OH)3 + H2SiO4

Aluminium hydroxide forming from aluminium chloride;

AlCl3 + 3 NaOH = 3 NaCl + Al(OH)3

aluminium hydroxide calcination;

2Al(OH)3 = Al2O3 + 3H2O

eletrolisis of cryolite solution (overall);

Al2O3 + 3 C = 2 Al + 3 CO

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