What is Hall Heroult’s process please explain???????????????????????
What is Hall Heroult’s process please explain???????????????????????
preet kaur , 6 Years ago
Grade 11
Inorganic Chemistry> What is Hall Heroult’s process please exp...
2 Answers
Arun
The Hall–Héroult process is the major industrial process for smelting aluminium. It involves dissolving aluminium oxide (alumina) (obtained most often from bauxite, aluminium's chief ore, through the Bayer process) in molten cryolite, and electrolysing the molten salt bath, typically in a purpose-built cell
Approved Last Activity: 6 Years ago
Mayank
Hall-Heroult's process is given by
2Al2O3 + 3C ----------> 4Al + 3CO2
2Al2O3(l) (l)2-(l) + 6O3+ 4Al
At cathode :- 4Al3+ + 12e- -----------> 4Al(l)
At Anode :- 6O2- -------------> 3O2(g) + 12e-
3C + 3O2 ------------> 3CO2 (evolved)
this above rxns are all in support of Hall Heroult process...................hope this helps
Approved Last Activity: 6 Years ago
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