Interaction | Reaction | Process     Data Page

Almost all aluminium is manufactured using the continuous Hall-Heroult process in which aluminium oxide is electrolysed (5.0v) in a solvent of molten cryolite.

However, during an "anode effect" event, two perfluorocarbons (PFCs), CF4 and C2F6 , are produced. The magnitude of PFC emissions for a given level of aluminum production depends on the frequency and duration of the anode effect event.

CF4 and C2F6 have global warming potentials (GWP) of 6,500 and 9,200 times as strong as CO2 and atmospheric lifetimes over 10,000 years.

http://www.epa.gov/highgwp/aluminum-pfc/overview.html
Na3AlF6
  +  
C
         
CF4
  +  
C2F6
  +  
Al
  +  
NaF
Reactant Page Go To Go To
Sodium hexafluoroaluminate     Reactions Using    Reactions Forming
Carbon     Reactions Using    Reactions Forming
Tetrafluoromethane     Reactions Using    Reactions Forming
Hexafluoroethane     Reactions Using    Reactions Forming
Aluminium     Reactions Using    Reactions Forming
Sodium fluoride     Reactions Using    Reactions Forming

Interaction, Reaction, Process defined as:
Electrolysis
Industrial Process: Inorganic

© Mark R. Leach 1999 –

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