Factorio Forums

idea based on post Brambor, Combined ore patches
viewtopic.php?f=6&t=55884 I suggest adding a metallurgical plant for the separation of metals
principle of operation like oil refinery p.s it is necessary to specify (create) the parameter, content of impurities in % --------------------------------------------
Alternative way to produce sulfuric acid
there are times when there is not enough sulfuric acid, so I suggest adding a mineral, Pyrite or Greigite
https://en.wikipedia.org/wiki/Pyrite
https://en.wikipedia.org/wiki/Greigite
Minerals used to produce sulfuric acid

Would be more realistic, but would add diificulty

Angels mod's do something similar and more complex and involved it's great and fun if you think vanilla is to simple.
https://mods.factorio.com/mods/Arch666A ... lsrefining
I wouldn't be against to ad something similar but simplified to the base game.