Just a couple spelling errors I think could me addressed:

Powedered nickel frothing → Powdered
Powedered zinc frothing → Powdered
There are like 500 recipes that use the word "seperation" → Separation

Also,
Zinc Tailings Cleaning → Icon depicts sulfuric acid despite not being an ingredient
Copper Tailings Looping → Icon depicts sulfuric acid despite not being an ingredient

oh yeah sure, i'll fix these for 0.7 - im 99% sure that 'powdered' was intentional? i cant remember exactly, but im pretty sure that spelling was meant to be there (like air filterers)