The Hall–Héroult process for aluminium electrolysis. Vector version of <a href="//commons.wikimedia.org/wiki/File:Hall-heroult-kk-2008-12-31.png" title="File:Hall-heroult-kk-2008-12-31.png">File:Hall-heroult-kk-2008-12-31.png</a> by <a href="https://en.wikipedia.org/wiki/User:Kashkhan" class="extiw" title="w:User:Kashkhan">Kashkhan on en.wikipedia</a>.
<a href="https://en.wikipedia.org/wiki/User:Parcly_Taxel" class="extiw" title="w:User:Parcly Taxel">Parcly Taxel</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>