This report has a lot of good / useful tidibits about Electrification (as opposed to use of fossil fuels) in various industries....and Plasma in particular....of particular note, reference the Alumina production from Bauxite - so someone was thinking about this as a potential application going back to 2018...

Electrifying Industry, 2018 – Zero Carbon Industry Plan (bze.org.au)

Swedish cement company Cementa (part

of HeidelbergCement Group) is currently

investigating the potential of plasma arc furnaces

to electrify cement kilns.156

Other potential applications of plasma arc

furnaces include:

• Calcination processes including limestone

calcination for pulp and paper industry and

flash calcination to produce metakaolin.

• Beneficial processing of wastes from metal

works such as aluminium dross and zinc leach

by-product.

• Alumina production from bauxite

• Manufacturing carbon black.