Liquate maybe?
Ores must be mined, smelted, and refined before they can be processed into useful everyday materials.
Nitrogen is an element, it does not separate smaller than nitrogen atoms, unless you consider subatomic particles to be useful,
mitochidrian
It is called fractional distillation.
Ores
smelting
This process helped us to separate ex-specially for crude oil.
Smelting
Hfet
Sulphur (or the different spelling, Sulfur) was added to rubber to form the process of vulcanization.
chlorine
zinc